Journal Publications

1.    N. A. Riza and D. Psaltis, “Acousto-optic signal processors for transmission and reception of phased array antenna signals,”Applied Optics, (Journal of the Optical Society of America, Washington, D.C.)Vol.30, No.23, pp.3294-3303, 1991.
2.    N. A. Riza, “A transmit/receive time delay optical beamforming architecture for phased array antennas,”Applied  Optics  ,Vol.30, No. 32, pp.4594-4596, Nov., 1991.
3.    N. A. Riza, “An acousto-optic phased array antenna beamformer with independent phase and carrier control using single sideband signals,”IEEE  Photonics Tech. Lett., Vol.4, No.2, pp.177-179, February, 1992.
4.    N. A. Riza, “Optically efficient interferometric acousto-optic architecture for spectrum analysis,” Applied Optics, Vol.31, No.17, pp.3194-3196, June 10, 1992.
5.    N. A. Riza, “Acousto-optic  architecture for two dimensional beam scanning in phased array antennas,”Applied Optics , Vol.31, No.17, pp.3278- 3284, June 10, 1992.
6.    N. A. Riza, “An acousto-optic phased array antenna beamformer for multiple simultaneous beam generation,”IEEE  Photonics Tech. Lett., Vol.4, No.7, pp.807-809, July, 1992.
7.    N. A. Riza, “A compact high performance optical control system for phased array radars,”IEEE Photonics Tech. Lett., Vol.4, No.9, pp.1073-1076, Sept., 1992.
8.    N. A. Riza, “Liquid crystal-based optical control of phased array antennas,”IEEE /OSA  Journal of Lightwave Technology, Vol.10, No.12, pp. 1974-1984, Dec., 1992.
9.    N. A. Riza, “Experimental demonstration of an acoustooptic system for two dimensional  phased array antenna scanning,”Applied Optics , Vol. 32, No. 11, pp. 1936-1942, April 10, 1993.
10.    N. A. Riza, J. E. Hershey, and A.  A. Hassan “A signaling system for multiple access laser communications and interference protection”Applied Optics ,  Vol. 32, No. 11, pp. 1965-1972, April 10, 1993.
11.    N. A. Riza, D. L. Polla, W. P. Robbins, and D. E. Glumac, “High Resolution 50 nm Linear Displacement Macroscale Meander-line PZT Actuator,” IEE Electronic Letters (U.K.), Vol.29, No.18, Sept. 02, 1993.
12.    N. A. Riza, “In-line interferometric time integrating acoustooptic correlator,”Applied Optics, Vol.33, No.14, pp.3060-3069, May 10, 1994.
13.    N. A. Riza, “Acousto-optic liquid crystal analog beamfomer for phased array antennas,” Applied Optics ,Vol. 33, No.17, pp. 3712-3724, June 10, 1994.
14.    N. A. Riza and M. C. DeJule, “Three terminal adaptive nematic liquid crystal lens device” Optics Letters, Vol.19, No.14, pp. 1013-15, July, 1994.
15.    N. A. Riza, “Liquid crystal-based optical time delay units for phased array antennas,” IEEE /OSA  Journal of Lightwave Tech , Vol.12, No.8, August, 1994.
16.    N. A. Riza, “High optical isolation low loss moderate switching speed nematic liquid crystal optical switch,”Optics Letters, Vol. 19, No.8, pp.1780-1782, 1994.
17.    Amer A. Hassan, John E. Hershey, and Nabeel A. Riza, “Spatial Optical CDMA,”IEEE  Journal on Selected Areas of Communications, Vol.13, No.3, pp.609-613, April 1995.
18.    N. A. Riza, “25-Channel Nematic Liquid Crystal Optical Time Delay Unit Characterization,” IEEE Photon. Tech.  Letters, Vol.7, No.11, pp.1285-1287, Nov., 1995.
19.    N. A. Riza, “Space Integrating Interferometric Acousto-optic Convolver,” IEEE Photonic Technology Letters, Vol.7, No.3, pp. 339-341, 1995.
20.    N. A. Riza and N. Madamopoulos, “High Signal-to-Noise Ratio Birefringence Compensated Optical Delay Line using a Noise Reduction Scheme,” Optics Letters ,Vol.20, No.22, pp.2351-2353, Nov.15, 1995.
21.    N. A. Riza and S. E. Saddow, “Optically Controlled Photoconductive N-bit Switched Microwave Signal Attenuator”,IEEE Microwave & Guided Wave Lett., Vol.5, No.12, pp.448-450 Dec. 1995.
22.    N. A. Riza and M. M. K. Howlader., “Narrowband Ultrasonic Phased Array Control using a Photonic Beamformer,”Ultrasonics, Vol.34, No.1, March, pp. 9-18  1996.
23.    N. A. Riza and M. M. K. Howlader., “Acousto-optic System for the Generation and Control of Tunable Low Frequency Signals,” Optical Engineering, Vol.35, No.4, pp. 920-925 April, 1996.
24.    N. A. Riza, “ Scanning heterodyne optical interferometers,” Review of Scientific Instruments, American Institute of Physics Journal, Vol.67, pp.2466-2476 7, July 1996.
25.    N. A. Riza, M. M. K. Howlader, and N. Madamopoulos, “Photonic Security System using Spatial Codes and Remote Coded Coherent Optical Communications,” Optical Engineering, Vol.35, No.9, pp.2487-2498, Sept., 1996.
26.    N. A. Riza and N. Madamopoulos, “Phased Array Antenna Maximum Compression Reversible Photonic Beamformer using Ternary Designs and Multiple Wavelengths,” Applied Optics, Vol.36, No.5, pp.983-996, Feb.10, 1997.
27.    N. A. Riza and N. Madamopoulos, “Microwave band demonstration of a reflective geometry fiber and free-space binary photonic delay line,”IEEE Microwave & Guided Wave Lett., Vol.7, No.4, pp.  April 1997.
28.    N. A. Riza, Photonic Signal Processing for Biomedical and Industrial Ultrasonic Probes,” OSA Optics & Photonics News, Optics in 1996 Special Issue,Vol.7, No.12, pp.22-23, Dec., 1996.
29.    N. A. Riza and N. Madamopoulos, “ Characterization of a ferroelectric liquid crystal based time delay unit for phased array antenna applications,” IEEE /OSA  Journal of Lightwave Tech , Vol.15, No.7, pp.1088-1094, July, 1997.
30.    N. A. Riza, “Analog Vector Modulation-Based Widely Tunable Frequency Photonic Beamformer for Phased Array Antennas,” Joint Special Issue of IEEE /OSA  Journal of Lightwave Tech  and IEEE Microwave Theoy & Techniques Journal, Vol.45, No.8, pp.1508-1512, Aug., 1997.
31.    N. A. Riza, “Acousto-Optic Device-based High Speed High Isolation Photonic Switching Fabric for Signal Processing,” Optics Letters ,Vol.22, No.13, pp.1003-1005, July 1, 1997.
32.    N. A. Riza, “Acousto-Optically Switched Optical Delay Lines ,” Optics Communications , Vol.145, pp.15-20, Jan.1, 1998.
33.    N. Madamopoulos and N. A. Riza, “Directly modulated semiconductor laser fed photonic delay line with ferroelectric liquid crystals,” Applied Optics, Vol.37, No.8, pp.1407-1416, March 10, 1998.
34.    N. A. Riza, “ High Speed Tunable Bandwidth Ultrasonic Array Beam Steering using Ultra-Compact Photonics,” Ultrasonics, Vol.36, pp.21-24, 1998.
35.    N. A. Riza, “High Speed Scanning Interferometer for Scientific & Industrial Applications,” OSA Optics & Photonics News (OPN), Optics in 1997 Special Issue,Vol.8, No.12, p.34, Dec., 1997.
36.    N. A. Riza and Jian Chen, “ Ultra-High –47 dB Optical Drop Rejection Multi-Wavelength Add-Drop Filter using Spatial Filtering and Dual Bulk Acousto-Optic Tunable Filters, “Optics Letters, Vol.23, No.12, pp.945-947, June 15, 1998.
37.    N. A. Riza and Shifu Yuan, “ Demonstration of a liquid crystal adaptive alignment tweeker for high speed infrared band fiber-fed free-space systems,” Optical Engineering, Vol.37, No.6,  June, 1998.
38.    N. Madamopoulos and N. A. Riza, “ Adaptable delay balanced loss binary photonic delay line architectures using polarization switching,” Optics Communications , Vol.152, pp.135-143, June 15, 1998.
39.    N. A. Riza and Sarun Sumriddetchkajorn, “ Fault Tolerant Dense Multi-Wavelength Add/Drop Filter using a Two Dimensional Digital Micromirror Device, “ Applied Optics-LP, Vol. 37, Issue 27, Page 6355 (September 1998).
40.    N. A. Riza and Shifu Yuan, “ Low Optical Interchannel Crosstalk, Fast Switching Speed, Polarization Independent 2×2 Fiber Optic Switch using Ferroelectric Liquid Crystals,” Electronics Letters, Vol.34, No.13,  25th June, 1998.
41.    N. A. Riza and N. Madamopoulos, “Photonic delay line using electrically switched gratings in polymer dispersed liquid crystals,” Optical Engineering, Vol.37, No.11, pp.3061-3065, Nov. 1998.
42.    N. Madamopoulos and N. A. Riza, “Polarization Sensitive Hologram-based Photonic delay lines,” Optics Communications, Vol. 157, pp.225-237, 1 Dec., 1998.
43.    N. A. Riza, “High Speed Multiwavelength Photonic Switch,”  Research Article Selected for the OSA Optics & Photonics News (OPN) Magazine, Optics in 1998 Special Issue, Dec., 1998.
44.    N. A. Riza and Sarun Sumriddetchkajorn, “ Fault tolerant polarization insensitive photonic delay line architectures using Two Dimensional Digital Micromirror Devices,” Optics Communications , Vol. 160, pp.311-320, 15 Feb., 1999.
45.    N. A. Riza and N. Madamopoulos, “ Synchronous amplitude and time control for an optimum dynamic range variable photonic delay line,” Applied Optics , Vol.38, No.11, pp.2309-2318, 10 April  1999.
46.    N. A. Riza and Sarun Sumriddetchkajorn, “ Digitally controlled fault tolerant multiwavelength programmable fiber-optic attenuator using a two dimensional digital micromirror devices,” Optics Letters, Vol. 24, Issue 5, Page 282, March 1, 1999.
47.    Shifu Yuan and N. A. Riza, “General formula for coupling loss characterization of single mode fiber collimators using gradient-index rod lenses,” Applied Optics, Vol.38, No.15, pp.3214-3222, May 20,  1999. Erratum, Applied Optics, Vol.38, No.30, p.6292, Oct.1999.
48.    N. A. Riza, “ Sensor Controls See the Light,” IEEE Circuits and Devices Magazine, pp.14-21, May 1999. (INVITED)
49.    N. A. Riza and S. Sumriddetchkajorn, “Small Tilt Micromirror Device-based Multiwavelength Three Dimensional 2 × 2 Fiber-Optic Switch Structures,” Optical Engineering, Vol.39, No.2, pp.379-386, Feb. 2000.
50.    N. A. Riza and S. Sumriddetchkajorn, “Versatile Multi-Wavelength Fiber-Optic Switch and Attenuator Structures using Mirror Manipulations,” Optics Communications, 169 (233-244), Oct.1, 1999.
51.    N. A. Riza and Shifu Yuan, “ Reconfigurable wavelength add-drop filtering based on a Banyan network topology and ferroelectric liquid crystal fiber-optic switches,” IEEE/OSA Journal of Lightwave Tech., Vol.17, No.9, Sept. 1999.
52.    N. A. Riza, “Fault-tolerant high speed variable fiber-optic attenuator using micromirrors,”  Research Article Selected for the OSA Optics & Photonics News (OPN) Magazine, Optics in 1999 Special Issue, Dec., 1999.
53.    N. A. Riza and S. Sumriddetchkajorn, “Micromechanics-based wavelength-sensitive photonic beam control architectures and applications,” Applied Optics, Vol. 39, No. 6, pp. 919-932,20 Feb. 2000.
54.    S. Sumriddetchkajorn and N. A. Riza, “Fiber-connectorized multiwavelength 2×2 switch structure using a fiber loop mirror,” Optics Communications, Vol. 175, pp. 89-95, 15 Feb. 2000.
55.    N. Madamopoulos and N. A. Riza, “Demonstration of an all-digital 7-bit 33-channel photonic delay line for phased-array radars,” Applied Optics, Vol. 39, No. 23, pp. 4168 –   4181, 10 August 2000.
56.    N. Madamopoulos and N. A. Riza, “All-fiber connectorized compact fiber optic delay-line modules using three-dimensional polarization optics,” Optical Engineering, Vol. 39, No. 9, pp. 2338-2344, September 2000.
57.    N. A. Riza and S. Sumriddetchkajorn, “Fault-tolerant variable fiber-optic attenuator using three dimensional beam spoiling,” Optics Communications, Vo.185, 103-108, Nov.1, 2000.
58.    N. A. Riza and Z. Yaqoob, “Sub-microsecond speed variable optical attenuator using acousto-optics,” IEEE Photonics Technology Letters, Vol. 13, No. 7, pp. 693-695, July 2001
59.    S. Sumriddetchkajorn, N. A. Riza and D. K. Sengupta, “Liquid crystal-based self-aligning 2×2 wavelength routing module,” Optical Engineering, Vol. 40, Issue 8, August 2001, pp.1521-1528
60.    Z. Yaqoob, A. A. Rizvi and N. A. Riza, “Free-space wavelength multiplexed optical scanner,” Applied Optics, 40(35), 6425-6438, Dec. 10 (2001)
61.    M. J. Mughal and N. A. Riza, “Compact acousto-optic high speed variable attenuator for high power applications,” IEEE Photonics Technology Letters, 14(4), 510-512, April (2002)
62.    S. Sumriddetchkajorn and N. A. Riza, “Fault-tolerant three-port fiber-optic attenuator using small tilt micromirror device,” Optics Communications, April 2002, pp. 77-86.
63.    Z. Yaqoob and N. A. Riza, “Free-Space Wavelength-Multiplexed Optical Scanner Demonstration,” Applied Optics-IP, Vol. 41, Issue 26, Page 5568 (September 2002).
64.    S. Sumriddetchkajorn and N. A. Riza, “Micro-Electro-Mechanical System-Based Digitally Controlled Optical Beam Profiler,” Applied Optics-LP, Vol. 41, Issue 18, Page 3506 (June 2002).
65.    N. A.  Riza and M.J. Mughal, ‘Variable Attenuator for Fast-Response, High-Optical-Power Applications,’ OSA Optics and Photonics (OPN) News, pp. 41, December 2002.
66.    Martin van Buren and N. A. Riza, “ Foundations for low loss fiber gradient-index lens pair coupling with the self-imaging mechanism,” Applied Optics, LP, Vo.42, No.3, Jan. 20, 2003.
67.    N. A. Riza and Muzamil A. Arain, “ Code multiplexed optical scanner,” Applied Optics, IP, Vo.42, No.8, March 10, 2003.
68.    N. A. Riza and Sajjad A. Khan, “ Polarization multiplexed optical scanner,” Optics Letters, Vol.28, No.7, pp.561-163, April 1, 2003.
69.    N. A. Riza and Muzamil A. Arain, “ Angstrom-range optical path-length measurement with a high-speed scanning heterodyne optical interferometer,” Applied Optics, OT, Vo.42, No.13, pp.2341-2345, 1 May 2003.
70.    N. A. Riza and Z. Yaqoob, “ Sub-microsecond speed optical coherence tomography system design and analysis using acousto-optics, Applied Optics, OT, Vol.42, No.16, 1 June 2003.
71.    N. A. Riza and M. J. Mughal, “Broadband optical equalizer using fault tolerant digital micromirrors,” Optics Express Internet Journal,  Vol. 11, pp.1559-1565, June 30, 2003.  http://www.opticsexpress.org/abstract.cfm?URI=OPEX-11-13-1559
72.    Z. Yaqoob, M. Arain, N. A. Riza, “ Wavelength multiplexed optical scanner using photothermorefractive glasses, Applied Optics-IP, Vol. 42, No. 26, p. 5251, Sept. 2003.
73.    N. A. Riza, S. A. Khan, M. A. Arain, “Flexible beamforming for optically controlled phased array antennas,” Optics Communications, Vol.227, pp.301-310, 2003.
74.    N. A. Riza, M. A. Arain, and S. A. Khan, “Analog-Digital Variable Fiber-Optic Delay Line,” IEEE/OSA Journal of Lightwave Technology, vol.22, No.2, pp.619-624, Feb. 2004.
75.    N. A. Riza and M. J. Mughal, “Optical Power Independent Optical Beam Profiler,” Optical Engineering, Vol.43, No.4, pp.793-797, April 2004.
76.    Z. Yaqoob and N. A. Riza, “Eye-safe passive-optics no-moving parts barcode scanners,” IEEE Photonics Technology Letters, Vol.16, No.3, pp.954-956, March 2004.
77.    Z. Yaqoob and N. A. Riza, “Low loss wavelength-multiplexed optical scanners using volume Bragg gratings for transmit-receive lasercom systems,” Optical Engineering, Vol.43, No.5, pp.1128-1135, May 2004.
78.    Nabeel A. Riza and Muzammil A. Arain, “Super Wide Angle Coverage                                               Code Multiplexed Optical Scanner”, Optics Letters, Vol.29, No.9, pp.1004-1006, May 1, 2004.
79.    N. A. Riza and Z. Yaqoob, ” Space Multiplexed Optical Scanner “, Applied Optics, Vol.43, No.13, pp.2703-2708, 1 May 2004.
80.    S. A. Khan and N. A. Riza, “Demonstration of 3-dimensional wide angle laser beam scanner using liquid crystals,” Opt. Express 12, 868-882 (2004),
http://www.opticsexpress.org/abstract.cfm?URI=OPEX-12-5-868
81.    N. A. Riza and D. Jorgesen, “Minimally Invasive Optical Beam Profiler,” Opt. Express 12, 1892-1901 (2004),
http://www.opticsexpress.org/abstract.cfm?URI=OPEX-12-9-1892
82.    N. A. Riza and S. A. Khan, ” Liquid Crystal Deflector-based Variable Fiber-Optic Attenuator “, Applied Optics, Vol. 43, No.17, 3449-3455, June 2004.
83.    N. A. Riza and Muzammil A. Arain, “Programmable Broadband Radio-Frequency Transversal Filter with Compact Fiber-Optics and Digital Microelectromechanical System-Based Optical Spectral Control,” Applied Optics, Vol.43, No.15, pp.3159-3165, May 2004.
84.    M. J. Mughal and N. A. Riza, “Variable fiber-optic attenuator using bulk micromachined deformable micromirror,” Optical Engineering, Vol.43, Oct.10 2004. (also on-line published in OE letters June 17, 2004. http://www.spie.org/app/Publications/journals/pdfs/OEL_04015_Online.pdf)
85.    N. A. Riza and Z. Yaqoob, ” Agile Interferometry: A Non-Traditional Approach”, Optics Communications, Vol.241, Issues 4-6, pp.419-428, 16 Nov. 2004.
86.    N. A. Riza and Farzan N. Ghauri, “Hybrid Analog Digital MEMS Fiber Optic Variable Attenuator,” IEEE Photonic Technology Letters, Vol.17, No.1, pp. 124-126, Jan. 2005
87.    N. A. Riza and N. Madamopoulos, “ Compact switched retroreflection-based 2×2 optical switching fabric for WDM applications”, IEEE/OSA Journal of Lightwave Technology, Vol.23, No.1, pp.247-259, Jan. 2005.
88.    N. A. Riza and M. J. Mughal, “Fiber-Optic Tunable Multiwavelength  Variable Attenuator and Routing Modules, ” Applied Optics, Vol.44, No.5, pp..792-799, Feb., 2005.
89.    Z. Yaqoob and N. A. Riza, “Bulk acousto-optic wavelength agile filter module for wavelength-multiplexed optical scanner,” Applied Optics, Vol.44, No.13, May 1, 2005.
90.    N. A. Riza and S. A. Khan, “ Wavelength tunable variable fiber optic attenuator using liquid crystal-mirror hybrid controls,” IEEE Photon. Tech. Lett., Vol.17, No.3, pp.621-623, March 2005.
91.    N. A. Riza, M. Bakker, A. Bokhari, “ Programmable Spectral Interferometric Microscopy,” AIP Rev. Scientific Instru., Vol.76, 033107, 1 March on-line date, 2005.
92.    N. A. Riza and M. A. Arain, “Precision polarization multiplexed heterodyne acousto-optic interferometric sensor,” Optical Engineering, Vol.44, No.5, pp. 054401-5, May 2005.
93.    N. A. Riza and Farzan N. Ghauri, “Super Resolution Hybrid Analog-Digital Optical Beam Profiler Using Digital Micro-Mirror Device,” IEEE Photon. Tech. Lett., Vol. 17, No.7, pp.1492-94, July 2005.
94.    N. A. Riza and Farzan N. Ghauri, “ Super resolution variable fiber-optic attenuation instrument using digital micromirror device,” AIP Rev. Scientific Instru., Vol.76, No.1, 2005.
95.    Muzammil A. Arain and N. A. Riza, “ Fiber Coupled in-line heterodyne optical interferometer for minimally invasive sensing,” IEEE/OSA Journal of Lightwave Technology, Vol.23, No.8, pp.2449-2454, August 2005.
96.    N. A. Riza and S. A. Khan, “Ultra-low loss laser communications technique using smart beamforming optics,” Optics Communications, Vol. 257, Issue 2, pp. 225-246, 15 January 2006.
97.    N. A. Riza and S. A. Khan, Erratum to “Ultra-low loss laser communications technique using smart beamforming optics” [Opt. Commun. 257 (2) (2006) 225–246], Optics Communications, Vol. 259, Issue 2, pp.888-890, 15 March 2006.
98.    N. A. Riza, M. Arain, F. Perez, “Harsh Environments Minimally Invasive Optical Sensor using Freespace Targets,” IEEE Sensors Journal, Vol.6, No.3, pp.672-685, June 2006.
99.    N. A. Riza, M. Arain, F. Perez, “ 6H- Single Crystal Silicon Carbide Thermo-Optic Coefficient Measurements for Ultrahigh Temperatures up-to 1273 K in the telecommunications infrared band,” AIP J. of Appl. Phys., Vol.98, No.1, 2005.
100.    W. Sun, W. Noell, M. Zickar, M. J. Mughal, F. Perez, N. A. Riza and Nico F. De Rooij, “Design, Simulation, Fabrication, and Characterization of a Digital Variable Optical Attenuator,” IEEE J. of MEMS, Vol.15, No.5, Oct. 2006.
101.    N. A. Riza, “Comment: on Wavelength controlled photonic true time delay for wideband applications,” IEEE Photon. Tech. Lett., Vol. 17, No.12, Dec. 2005.
102.    S. A. Khan and N. A. Riza, “ Demonstration of a MEMS Digital Micromirror Device-based broadband reconfigurable optical add-drop filter for dense wavelength division multiplexing systems,” IEEE/OSA Journal of Lightwave Technology, Feb. 2007..
103.    M. A. Arain and N. A. Riza, “ Optoelectronic approach to adaptive radio frequency transversal filter implementation with negative coefficients by using optical spectrum shaping,” Applied Optics, Vol.45, No.11, 10 April 2006.
104.    S. A. Khan and N. A. Riza, “Demonstration of a No-Moving-Parts Axial Scanning Confocal Microscope Using Liquid Crystal Optics,” Optics Communications, Vol.265, No.2, pp.461-467, appeared on-line 5 May, 2006.
105.    N. A. Riza, M. A. Arain, F. N. Ghauri, “Self Calibrating Hybrid Wavelength, Polarization, and Time Multiplexed Heterodyne Interferometers for Angstrom Precision Measurements” Optical Engineering, Dec. 2006.
106.    N. A. Riza, M. Sheikh, F. Perez, “Optical Substrate Thickness Measurement System using Hybrid Fiber-Freespace Optics and Selective Wavelength Interferometry,” Optics Communications, appeared on-line 17 August, 2006.
107.    N. A. Riza, F. N. Ghauri, and F. Perez,  “Wireless Pressure Sensor using Laser Targeting of Silicon Carbide,” Optical Engineering, Vol.46, No.1, Jan. 2007.
108.    N. A. Riza and M. A. Arain, “ Cryogenic Temperature Measurement using Silicon Carbide-based Wireless Optical Sensor,” IEEE Photon. Tech. Lett., Vol.18, No.24, pp.2599-2601, Dec. 15, 2006.
109.    N. A. Riza and F. N. Ghauri, “Compact Tunable Microwave Filtering using Retro-Reflective Acousto-Optic Tunable Filtering and Delay Controls,” Applied Optics, Vol. 46, Issue 7, pp. 1032-1039, 2006.
110.    N. A. Riza, F. N. Ghauri, and F. Perez “ Silicon Carbide-based remote wireless optical pressure sensor,” IEEE Photon. Tech. Lett, Vol.19, April 1, 2007.
111.    N. A. Riza and S. A. Reza, “Hybrid analog-digital design microelectromechanical systems spectral processor for simultaneous gain slope and channel equalization controls,” Optical Engineering, Vol.46, No.3, p.030501, March 2007.
112.    N. A. Riza and S. A. Reza, “ Smart Value-Added Fiber-Optic Modules using Spatially Multiplexed Processing,” Applied Optics, Vol.46, No.18, pp.3800-3810, June 2007.
113.    N. A. Riza and S. A. Reza, “Broadband All-Digital Variable Fiber-Optic Attenuator using Digital Micro-Mirror Device,” IEEE Photon. Tech. Lett, Nov.1, 2007.
114.    M. Gentili and N. A. Riza, “Wide Aperture No Moving Parts Optical Beam Profiler Using Liquid Crystal Displays,” Applied Optics, Vol.46, pp.506-512, 2007.
115.    N. A. Riza and M. Sheikh, “Silicon carbide based extreme environment temperature sensor using wavelength tuned signal processing,” Optics Letters, Vol.33, No.10, pp.1129-1131, May 15, 2008.
116.    N. A. Riza and F. N. Ghauri, “High Resolution Tunable Microwave Filter using Hybrid Analog-Digital Controls via an Acousto-Optic Tunable Filter and Digital Micromirror Device,” IEEE/OSA Journal of Lightwave Technology, Vol.26, No.17, Sept.1, pp.3056-3061, 2008.
117.     N. A. Riza, “High-Speed High-Isolation 2×2 Fiber-Optic Switch for Wideband Radar Photonic Beamforming Controls,” IEEE/OSA Journal of Lightwave Technology, Special Issue on Microwave Photonics, Aug.15, 2008.
118.    N. A. Riza and S. A. Reza, “High-dynamic-range hybrid analog–digital control broadband optical spectral processor using micromirror and acousto-optic devices,” Optics Letters, Vol. 33, pp.1222-1224, May 2008.
119.    N. A. Riza, M. Sheikh, G. Webb-Wood, and P. G. Kik, “Demonstration of three-dimensional optical imaging using a confocal microscope based on a liquid-crystal electronic lens,” Optical Engineering Journal, Vol. 47, No.6, pp.063201-1 to 063201-9, June 2008.
120.    N. A. Riza, M. Sheikh, G. Webb, P. Kik, “Demonstration of three-dimensional optical imaging using a confocal microscope based on a liquid-crystal electronic lens,” July 15, 2008 issue of Virtual Journal of Biological Physics Research.  The Virtual Journal, which is published by the American Physical Society and the American Institute of Physics in cooperation with numerous other societies and publishers, is an edited compilation of links to articles from participating publishers, covering a focused area of frontier research.  You can access the Virtual Journal at http://www.vjbio.org
121.    S. A. Reza and N. A. Riza, “A Liquid Lens-Based Broadband Variable Fiber Optical Attenuator,” Optics Communications, Vol. 282, No.7, pp.1298-1303, April 2009.
122.    N. A. Riza and S. A. Reza, “Non-Contact Distance Sensor using Spatial Signal Processing,” Optics Letters, Vol.34, No.4, pp.434-436, Feb.15, 2009.
123.    M. Sheikh and N. A. Riza, “Demonstration of Pinhole Laser Beam Profiling using a Digital Micromirror Device,” IEEE Photon. Tech. Lett, Vol.21, May 15, 2009.
124.    N. A. Riza, “Switchless Hybrid Analog-Digital Variable Optical Delay Line for RF Signal Processing,” SPIE Optical Engineering Journal, OE Letters, Vol.X, pp.XXX March 2009.
125.    S. A. Reza and N. A. Riza, “High Dynamic Range Variable Fiber Optical Attenuator using Digital Micromirrors and Opto-fluidics,” IEEE Photon. Tech. Lett, Vol.21, July 2009.
126.    M. Sheikh and N. A. Riza, “Direct Measurement High Resolution Wide Range Extreme Temperature Optical Sensor using an all-Silicon Carbide Probe,” Optics Letters, May 1, 2009.
127.    N. A. Riza, M. Sheikh, and F. Perez, “Hybrid Wireless-Wired Optical Sensor for Extreme Temperature Measurement in Next Generation Energy Efficient Gas Turbines,” ASME Journal of Engineering for Gas Turbines and Power, vol. 132, May 2010.
128.    S. Fathpour and N. A. Riza, “Silicon Photonics-Based Wideband Radar Beamforming – A Basic Design,” SPIE Optical Engineering Journal, Vol.49 (1), Jan. 2010.
129.    N. A. Riza and M. Sheikh, “ All-Silicon Carbide Hybrid Wireless-Wired Optics Temperature Sensor Network Basic Design Engineering for Power Plant Gas Turbines,” International Journal of Optomechatronics, Vol.4, No.1, Jan-March, Taylor & Francis, pp. 83-91, 2010.
130.    M. Sheikh and N. A. Riza,  “Motion-Free Hybrid Design Laser Beam Propagation Analyzer using a Digital Micro-mirror Device and a Variable Focus Liquid Lens, Applied Optics, June 2010.
131.    N. A. Riza and P. J. Marraccini, “Broadband 2×2 Free-Space Optical Switch Using Electrically Controlled Liquid Lenses,” Optics Communications,  Vol.283, pp.1711-1714,  2010.
132.    N. A. Riza and M. Sheikh, “Silicon Carbide-based High Resolution Extreme Environment Hybrid Design Temperature Sensor using Optical Pyrometry and Laser Interferometry,” IEEE Sensors J., , Vol.10, No.2, Feb. 2010.
133.    N. A. Riza and S. A. Reza, “Smart Agile Lens Remote Optical Sensor for Three Dimensional Object Shape Measurements,” Applied Optics, Vol. 49, No. 8, March 10, 2010.
134.    S. A. Reza and N. A. Riza, “Agile Lensing-based Non-Contact Liquid Level Optical Sensor for Extreme Environments,” Optics Communications, Vol.283, pp.3391-3397, 2010.
135.    N. A. Riza, S. A. Reza and P. J. Marraccini, “ Electronically Controlled Agile Lens-Based Broadband Variable Photonic Delay Line For Photonic and RF Signal Processing.” Applied Optics, Vol.45, No.35, pp.6718-6725, Dec.10, 2010.
136.    N. A. Riza, S. A. Reza and P. J. Marraccini, “ Digital Micro-Mirror Device-based Broadband Optical Image Sensor For Robust Imaging Applications.” Optics Communications, Vol.284, pp.103-111, 2011.
137.    N. A. Riza and P. J. Marraccini, “ Smart Two Dimensional Laser-Based Display,” IEEE Journal of Display Technology, IEEE Journal of Display Technology, Vol.7, No.2, pp.90-95, Feb.1, 2011.
138.    P. J. Marraccini and N. A. Riza, “ Power Smart In-door Optical Wireless Link Design,” online Journal of the European Optical Society (JEOS) Rapid Publications, Vol.6, 11054,  Dec.02, 2011.
139.    P. J. Marraccini and N. A. Riza, Multimode Laser Beam Analyzer Instrument using Electrically Programmable Optics,” AIP Rev. Scientific Instruments Journal, Vol.82, 123107, 2011.
140.    N. A. Riza, P. J. Marraccini, and Cody Baxley, “ Data Efficient Digital Micromirror Device-Based Image Edge Detection Sensor using Space-Time Processing,” Vol.12, No.5, p.1043-1047, May 2012.
141.    P. J. Marraccini and N. A. Riza, “Smart multiple-mode indoor optical wireless design and multimode light source smart energy-efficient links,” SPIE Optical Engineering Journal, Vol.52, 5, May 2013.
142.    M. J. Amin and N. A. Riza, “Smart laser scanning sampling head design for image acquisition applications,” Applied Optics, Vol.52, No.20, 10 July 2013.
143.    N. A. Riza and M. J. Amin, “Multi-Image Acquisition based Distance Sensor using Agile Laser Spot Beam Targeting,” Applied Optics, Sept.  2014.
144.    M. J. Amin, J. P. La Torre, N. A. Riza, “Embedded Optics and Electronics  Single Digital Micromirror Device-based Agile Pixel Broadband Imager and Spectrum Analyser for Laser Beam Hotspot Detection,” Applied Optics, 54, 3547–3559, 2015.
145.    N. A. Riza, M. J. Amin, J. P. La Torre, “Coded Access Optical Sensor (CAOS) Imager,” Journal of the European Optical Society (JEOS) Rapid Publications, April 2015. (open access on-line Journal of EOS www.jeos.org)
146.    M. J. Amin, and N. A. Riza, “Active depth from defocus system using coherent illumination and a no moving parts camera,” Optics Communications , Vol. 359, 135-145, Sept. 2015.
147.    N. A. Riza, M. Junaid Amin, and M. N. Riza, “Eye Vision Testing System and Eyewear Using Micromachines,” Journal of Micromachines, Vol. 6.11, 1690-1709, 2015. Open Access on-line Journal.
148.    J. Pablo La Torre, M. Junaid Amin, Barry Thompson, and N. A. Riza, “ Optical Shape Sensor using Electronically Controlled Lens,” IEEE Sensors Journal, Vol.16, No.12, April 13, 2016.

149.   N. A. Riza, J. Pablo La Torre, and M. Junaid Amin, “ CAOS-CMOS Camera,” Optics Express, Vol.24, pp.13444-13458, June 9, 2016.

150.   Pablo La Torre, B. Bornemann, and N. A. Riza, “ Smart Optical Shape Sensor using Electronically Controlled Lens and Laser Line Illumination Scanning,” IEEE Sensors Journal, on-line published Dec.2016.

151. N. A. Riza and J. Pablo La Torre, “Demonstration of 136 dB dynamic range capability for a simultaneous dual optical band CAOS Camera,” Optics Express, Vol.24, Dec.12, 2016.

152. M. J. Amin and N. A. Riza, “Machine Learning Enhanced Optical Distance Sensor,” Optics Communications (Elsevier Journal),  Sept.8, 2017.

153. J. Pablo La Torre, N. Mayes, and N. A. Riza and, “Laser Display System for Multi-Depth Screen Projection Scenarios,” Applied Optics,  Sept.15, 2017.

154. N. A. Riza and M. A. Mazhar, “Demonstration of the CDMA-mode CAOS smart camera,” Optics Express, Vol. 25, pp.31906-31920, Dec.11, 2017.

155.  N. A. Riza, M. A. Mazhar, “Laser beam imaging via multiple mode operations of the extreme dynamic range CAOS camera,” Appl. Opt., Vol. 57, No.E20, August 1, 2018.

156. N. A. Riza and M. A. Mazhar, “177 dB Linear Dynamic Range Pixels of Interest DSLR CAOS Camera,” IEEE Photonics Journal, Volume 11, Number 2, April 2, 2019. (early access) and Vol.11, No.2, pp. 1-10, June 2019. (open access journal) 10.1109/JPHOT.2019.2909430.

157. M. A. Mazhar, C. Russell, M. Amiri and N. A. Riza, “CAOS Line Camera,” Applied Optics, Oct.21, 2019.

158. N. A. Riza and M. A. Mazhar, “Pixels of Interest (POI) empowered higher speed CAOS camera imaging and spectrometry for multi-target applications,” Elsevier Journal of Optics Communications, Nov.7, 2019.

159. N. A. Riza and M. A. Mazhar, “Active-mode CAOS camera demonstration,” IEEE Photonics Technology Letters, 32(17), pp.1085-1088, July 2020.

160. M. A. Mazhar and N. A. Riza, “96 dB Linear High Dynamic Range CAOS Spectrometer Demonstration,” IEEE Photonics Technology Letters, Vol.32, No.23, Nov.16, 2020.

161. N. A. Riza and N. Ashraf, “Calibration-based minimalistic multi-exposure digital sensor camera robust linear high dynamic range enhancement technique demonstration,” Elsevier J. Optics Communications, Vol. 486, 126789, Jan.12, 2021.

162.  M. A. Mazhar and N. A. Riza, “CAOS Spectral Imager Design and Advanced High Dynamic Range FDMA-TDMA CAOS Mode,” OSA Applied Optics J., Vol. 60, No. 9, Feb. 19, 2021.

163. N. A. Riza and M. A. Mazhar, “Triple Coding Empowered FDMA-CDMA Mode High Security CAOS Camera,” Applied Optics, Vol. 60, No. 26, pp. 8154-8163, Sep. 10, 2021.

164. N. A. Riza and N. Ashraf, “First Demonstration of Calibrated Color Imaging by the CAOS Camera,” in MDPI (Multidisciplinary Digital Publishing Institute) Photonics J. vol. 8, no. 12, p. 538. 2021. (Open Access Journal)

Conference Papers

1.    N. A. Riza and D. Psaltis, “Multiplicative time and space integrating acousto-optic architectures for real-time spectrum processing,”Conference Proceedings of the International Society of Optical Engineering  (SPIE), Vol. 827, pp. 235-243,  1987.
2.    N. A. Riza, “Acousto-optic architectures for multi-dimensional phased array antenna processing,” in Opt. Technol. Microwave Appl. Conference Proceedings of the SPIE,  Vol. 1476, pp.144-156, 1991.
3.    N. A. Riza, “Acousto-optic techniques for phased array antenna processing,” in Emerging Optoelec. Tech. Conference Proceedings of the SPIE, Vol. 1622, pp.164-167,  Dec., 1991.( Invited Paper)
4.    N. A. Riza, and D. L. Polla “Micromechanical fiber-optic switches for optical networks,” Integrated Optics and Microstructures OE/Fibers Conference  Proceedings of the SPIE, Vol. 1790,  Sept., 1992.(Invited Paper)
5.    N. A. Riza, “A compact phased array antenna controller for air traffic radars,” IEEE  LEOS Annual Meeting Proceedings, EOS3.4, pp.386-387,  Nov., 1992.
6.    N. A. Riza, “High speed two dimensional phased array antenna scanning using acousto-optics,”Opto. Electronic Signal Processing for Phased Array Antennas III Conference Proceedings of the SPIE,  Vol. 1703, pp. 460-468, 1992.
7.    N. A. Riza, “Liquid crystal-based optical time delay control system for wideband phased arrays,” Analog Photonics OE/Fibers Conference  Proceedings of the SPIE, Vol. 1790, pp.171-183, 1992.
8.    N. A. Riza, “Phased array antenna control using liquid crystals,” Analog Photonics OE/Fibers Conference  Proceedings of the SPIE, Vol. 1790, pp.65-75, 1992.
9.    N. A. Riza, “Multiple-simultaneous phased array antenna beam generation using an acousto-optic system,” Analog Photonics OE/Fibers Conference  Proceedings of the SPIE, Vol. 1790, pp.95-102, 1992.
10.    N. A. Riza, J. E. Hershey, and A.  A. Hassan “Novel multi-dimensional coding scheme for multi-access optical communications,” Multigigabit Fiber Communications OE/Fibers Conference  Proceedings of  SPIE, Vol. 1790, pp.110-120, 1992.
11.    N. A. Riza and J. Johnson, “Electro-optic controllers for phased array radars,” in the PSAA-III, The DARPA Symposium on Photonic Systems for Antenna Applications, Jan.20-22, 1993,Naval Postgraduate School, Monterey, California.
12.    N.A. Riza, “A compact electrooptic controller for microwave phased array antennas,” SPIE Annual Meeting Conference Proceeding  on Optical Implementation of Information Processing,  Vol. 2026, pp. 286-296, July, 1993.
13.    N.A. Riza, “Three dimensional optical time delay units for radar,” SPIE Annual Meeting Conference Proceeding on Optical Implementation of Information Processing, Vol. 2026 pp. 227-237, July, 1993.
14.    N.A. Riza, “An optical control system for millimeter wave phased array antennas,”SPIE Annual Meeting Conference Proceeding  on Optical Implementation of Information Processing, Vol. 2026, 344-351, July, 1993.
15.    N.A. Riza, “The in-line acoustooptic interferometer as a correlator and spectrum analyzer,” SPIE Annual Meeting Conference Proceeding  on Optical Implementation of Information Processing, Vol. 2026, pp. 130-141,July, 1993.
16.    N. A. Riza, J. Johnson, and J. Prince, “SLM-based optical time and phase delay control for phased array radars,” PSAA-IV, The DARPA Symposium on Photonic Systems for Antenna Applications, Jan., 1994, Naval Postgraduate School, Monterey, California.
17.    N. A. Riza, “Liquid crystal-based optical controllers for phased array antennas,”Optoelectronic Signal Processing for Phased Array Antennas IV Conference Proceedings of the SPIE, Vol. 2155, pp. 169-180 , Jan., 1994. (Invited Paper)
18.    N. A. Riza, “Novel space/time integrating acoustooptic architectures for radar signal processing,”Optoelectronic Signal Processing for Phased Array Antennas IV Conference Proceedings of the SPIE, Vol.2155, pp.413-419,  Jan., 1994.
19.    N. A. Riza and M. C. DeJule, “A Novel Programmable Liquid Crystal Lens Device for Adaptive Optical Interconnect and Beamforming Applications,” Optical Computing Int.Conf., Edinburgh, pp.231-234, Aug. 22-25, 1994.
20.    N. A. Riza, “Optical Multiple Beamforming Systems for Wireless Communication Antennas,” SPIE Conference Proceeding  on Wireless Communications, Vol.2556, pp. 139-150, July 1995.
21.    N. A. Riza, “Polarization-based Fiber-optic Delay Lines,”SPIE Conference Proceeding on Optical Tech. for Microwave Appl. VII, Vol.2560, pp.120-129, July 1995.
22.    N. A. Riza, “Optical Beamforming for Ultrasonic Phased Arrays,” IEEE LEOS Annual Meeting Proceedings, EOS 4.1, Nov., 1995
23.    N. A. Riza, “High Speed Wide Bandwidth Optical Encryption and Decryption System using Spatial Codes,” IEEE LEOS Annual Meeting Proceedings, OC 7.4, Nov., 1995.
24.    N. A. Riza and S.E. Saddow, “N-bit optically controlled microwave signal attenuator using the photoconductive effect,” SPIE Proc., Vol. 2560, pp.9-18, 1995.
25.    N. A. Riza, “Acousto-optic Null Steering Adaptive Photonic Processor Architecture for Phased Arrays,” SPIE Proc, Vol. 2754, pp.95-102   Orlando, April, 1996.
26.    N. A. Riza and N. Madamopoulos, “Photonic time delay beamforming architectures using polarization switching arrays,” SPIE Proc, Vol. 2754, pp.186-197, Orlando, April, 1996
27.    N. A. Riza, “Multichannel Variable Optical Control Systems for Large Coherent Optical Arrays,” SPIE Proc, pp.333-337,  Orlando, April, 1996.
28.    J. Kim and N. A. Riza, “Fiber Array Optical Coupling Design Issues for Photonic Beamformers,” SPIE Proc, pp.271-282,  Orlando, April, 1996.
29.    N. A. Riza and M. M. K. Howlader, “ Photonic processor for in-phase and quadrature array signal processing,” SPIE Proc., Vol. 2754, pp.50-64, Orlando, April, 1996.
30.    N. A. Riza, “In-Line Acousto-Optic Architectures for Holographic Interferometry and Sensing,” OSA Topical Meeting on Holography Digest,  pp.13-16,  Boston, May, 1996.
31.    N. A. Riza, “Advanced Novel Photonic Instrumentation for Adaptive and Interferometric Astronomy,” SPIE Space Telescopes and Instruments II  Conf. Proc., Vol.2807, No.37, Aug.6-7, 1996.
32.    N. A. Riza, “Advances in Three Dimensional Reversible Photonic Modules for Phased Array Control,” SPIE Proc. Vol.2844, No.35, Denver, August 1996.
33.    N. Madamopoulos and N. A. Riza, “Switched Three Dimensional Photonic Delay Line using Directly Modulated Semiconductor Lasers for Microwave Radar Processing,” SPIE Proc., Vol. 2845, No. 32, 1996.
34.    N. A. Riza, “Photonic Control of Phased Arrays using Analog Vector Modulation,’’IEEE Phased Array Antenna Symp., Boston, Oct., 1996.
35.    N. A. Riza, “Wavelength Switched Fiber-Optically Controlled Ultrasonic Intracavity Probes,” IEEE LEOS Ann. Mtg. Digest, pp.31-36, Boston, 1996.
36.    N. A. Riza, “Photonically Controlled Ultrasonic Arrays: Scenarios And Systems,” IEEE International Ultrasonics Symp. Digest, Vol.2, pp.1545-1550, San Antonio, 1996.
37.    N. A. Riza and N. Madamopoulos, “ Phased array radar control using ferroelectric liquid crystal devices,” IEEE LEOS Ann. Mtgs. Digest, OC3: Microwave Systems,Nov.20, 1996.
38.    N. A. Riza, “Maximum hardware compression reversible photonic beamformer for wideband phased array systems,” OSA Ann. Meeting, Symp. on Optics for RF and Microwave Appl., Paper ThQQ6, Oct.,24, Rochestor, 1996.
39.    N. A. Riza and N. Madamopoulos, “ Ternary switched photonic delay lines for rf and microwave array signal processing,” OSA Ann. Meeting, Symp. on Optics for RF and Microwave Appl.,Paper ThQQ7, Oct.,24, Rochestor, 1996.
40.    N. A. Riza, “Reflection and transmission mode scanning heterodyne interferometers for scientific and industrial applications,” OSA Ann. Meeting, Symp. on Optical Instrumentation for Genetic Sequencing , Paper MPP2, Oct.,21, Rochester, 1996.
41.    N. A. Riza, “Coherent  techniques  and deformable-mirror device (DMD)-based switched photonic time delay  control  for high frequency antenna arrays,” SPIE Conf. on Optical Technology for Microwave Applications VIII, Vol.3160, pp.97-105, San Diego, August 1997.
42.    N. Madamopoulos and N. A. Riza, “Adaptable delay balanced loss switched photonic time delay modules for antenna arrays,” SPIE Conf. on Optical Technology for Microwave Applications VIII, Vol.3160, pp.62-68, San Diego, August 1997.
43.    N. A. Riza and Shifu Yuan, “Robust Packaging of Photonic RF Modules using Ultra-Thin Adaptive Optical Interconnect Devices,” SPIE Conf. on Optical Technology for Microwave Applications VIII, Vol.3160, pp.170-177, San Diego, August 1997.
44.    N. Madamopoulos and N. A. Riza, “ Switched photonic delay line for phased array antenna control using externally modulated microwave fiber-optic link,” SPIE Conf. on Optical Technology for Microwave Applications VIII, Vol.3160, pp.45-55, San Diego, August 1997.
45.    N. A. Riza, “ High Speed Tunable Bandwidth Ultrasonic Array Beam Steering using Ultra-Compact Photonics,” Ultrasonics International, Delft, The Netherlands, July 1997.
46.    N. A. Riza, “ Low Interchannel crosstalk wavelength routing switch based on bulk acousto-optic tunable filters,” IEEE LEOS Ann. Mtgs. Digest, Vol.2, ThH2, pp.341-342, Nov., 1997.
47.    N. A. Riza and N. Madamopoulos, “ All-fiber connectorized fiber-optic delay module using 3-D polarization optics,” IEEE LEOS Ann. Mtgs. Digest, Vol.2, ThW2, pp.472-473, Nov., 1997.
48.    N. A. Riza and N. Madamopoulos, “Single micro-optical bench fiber connectorized delay module using bulk polarization optics,” The 8th Ann. DARPA Symp. on Photonic Systems for Antenna Applications, Post-deadline Paper, pp.1-5, Jan. 1998.
49.    N. A. Riza and Dennis R. Pape, “ Photonic Signal Processing for Inverse Synthetic Aperture Radar Imaging,” SPIE Conf. Advances in Optical Information Processing VII , Vol. 3388, 09, April 1998.
50.    N. A. Riza, “Multi-function Acousto-optic Signal Processor,” SPIE Conf. Advances in Optical Information Processing VII , Vol. 3388, 12, April 1998.
51.    N. Madamopoulos and N. A. Riza, “Photonic delay lines using polarization selective holograms for optical signal routing,” SPIE Conf. Advances in Optical Information Processing VII , Vol. 3388, 16, April 1998.
52.    N. A. Riza , “BOPSCAN Technology:  A methodology and implementation of the billion point optical scanner,” in International Optical Design Conference (IODC), SPIE International Society for Optics and Photonics Proc.3482, pp. 572-578, Hawaii, June 1998.
53.    N. A. Riza, “ Ferroelectric Liquid Crystal Polarization Switching-based High Speed Multi-Wavelength Add/Drop Filters using Fiber and Array Waveguide Gratings, “ International Optics in Computing ‘98 Conference, SPIE Vol.3490, P39, pp.335-338, Brugge, Belgium, June 1998.
54.    N. Madamopoulos and N. A. Riza, “ First 7-bit True Time Delay Photonic Controller for a Phased Array Radar,” OSA Ann. Meeting, Symp. on Photonics for RF and Microwave Applications, Baltimore, Oct. , 1998. (OSA New Focus Award Winning Paper)
55.    N. Madamopoulos and N. A. Riza, “ Reversible fiber-optic switched delay module using GRIN lens fiber-optic collimators and ferroelectric liquid crystals,” IEEE LEOS Ann. Mtgs. Digest, Dec., 1998.
56.    N. A. Riza, “Photonic signal processing for phased array sensor systems,” IEEE LEOS Ann. Mtgs. Digest, Dec., 1998. (Invited Paper)
57.    N. A. Riza, “Switchboard in the sky:freespace optics platform for communications and processing,” IEEE LEOS Ann. Mtgs. Digest, Dec., 1998.
58.    Shifu Yuan and N. A. Riza, “ Low interchannel crosstalk high speed fiber-optic N X N crossconnect switch using polarization optics and ferroelectric liquid crystals,” IEEE LEOS Ann. Mtgs. Digest, Dec., 1998.
59.    N. A. Riza and Sarun Sumriddetchkajorn, “Two Dimensional Digital Micromirror Device-based 2 x2 fiber-optic switch array, “IEEE LEOS Ann. Mtgs. Digest, Dec., 1998.
60.    N. A. Riza and S. Sumriddetchkajorn, “Multiwavelength Three Dimensional 2 × 2 Fiber-Optic Switch Structure using Small Tilt Micro-Mirrors,” ICO XVIII: Optics in the Next Millenium, SPIE Vol. 3749, pp. 470-471, San Francisco, CA, Aug. 1999.
61.    Sarun Sumriddetchkajorn and N. A. Riza, “ Fault-Tolerant Multichannel Programmable Polarization Dependent Loss and Gain Compensator Structures using Small Tilt Micromirrors,” National Fiber Optic Engineers Conference, Chicago, Sept., 1999.
62.    S. Sumriddetchkajorn and N. A. Riza, “Multi-Wavelength 2×2 Fiber-Optic Switch Structure using Mirror Array,” IEEE-LEOS Annual Meeting, San Francisco, CA, Nov. 1999.
63.    S. Sumriddetchkajorn, D. K. Sengupta, and N. A. Riza, “Self-Aligning 2×2 Fiber-Optic Switch using Liquid Crystals,” IEEE-LEOS Annual Meeting, San Francisco, CA, Nov. 1999.
64.    N. A. Riza and Y. Huang, “High Speed Optical Scanner for Multi-Dimensional Beam Pointing and Acquisition,” IEEE-LEOS Annual Meeting, San Francisco, CA, Nov. 1999.
65.    N. A. Riza, “Reconfigurable Optical Wireless,” IEEE-LEOS Annual Meeting, San Francisco, CA, Nov. 1999.
66.    S. Sumriddetchkajorn and N. A. Riza, “Micromachine-based fault-tolerant high resolution high-speed programmable fiber-optic attenuator,” Optical Fiber Communication Conference, pp. ThQ1-1-ThQ1-3, Baltimore, Maryland, March 2000.
67.    S. Sumriddetchkajorn and N. A. Riza, “All-fiber add/drop wavelength routing structure,” Proceedings of SPIE, Vol. 4046, paper 12, Orlando, Florida, April 26, 2000.
68.    N. A. Riza and Y. Huang, “Digital fault-tolerant variable fiber-optic attenuator using liquid crystals,” Proceedings of SPIE, Vol. 4046, paper 11, Orlando, Florida, April 26, 2000.
69.    R. A. W. Gelissen, Y. Huang and N. A. Riza, “Polarization control using nematic liquid crystals,” Proceedings of SPIE, Vol. 4046, paper 13, Orlando, Florida, April 26, 2000.
70.    N. A. Riza and Z. Yaqoob, “High-speed programmable optical attenuator,” Proceedings of SPIE, Vol. 4046, paper 10, Orlando, Florida, April 26, 2000.
71.    N. A. Riza and Z. Yaqoob, “High speed fiber-optic probe for dynamic blood analysis measurements,” European Biomedical Optics Week – EBiOS 2000, paper 4163-11, Amsterdam, The Netherlands, July 2000.
72.    N. A. Riza and Z. Yaqoob, “High speed no moving parts optical coherence tomography system,” European Biomedical Optics Week – EBiOS 2000, paper 4160-08, Amsterdam, The Netherlands, July 2000.
73.    N. A. Riza and Z. Yaqoob, “Ultra high speed scanner for optical data handling,” LEOS Annual Meeting, Puerto-Rico, USA, November 2000.
74.    N. A. Riza, “MOST: Multiplexed Optical Scanner Technology,” LEOS Annual Meeting, Puerto-Rico, USA, November 2000.
75.    N. A. Riza, “ Liquid crystal electro-optical switching approaches,” OSA Integrated Photonics Research (IPR) Topical Meeting, IthE2-1, pp.99-101, 12-15 July 2000, Quebec, Canada. (Invited Paper)
76.    N. A. Riza , R. Akbar, S. Sumriddetchkajorn, F. Perez, and M. J. Mughal, “ 47 dB dynamic range sub-microsecond switching speed variable fiber-optic attenuator for fast transient fiber-optics,” OSA Topical Meeting on Photonics Switching, Postdeadline Paper PDP2, June 15, Monterey, CA, 2001.
77.    Z. Yaqoob, S. A. Khan and N. A. Riza, “Microwave and Optical Beam Control Using JOP Devices,” US-Japan Joint Optoelectronics Project (JOP) Participants Workshop, Hawaii, April 19-20, 2001. (Invited Paper)
78.    N.A. Riza, “ Intelligent Light for Signals,” ICO Prize paper, ICO XIX Conference Digest, SPIE Proc., Florence, Italy Aug. 2002. (Invited Paper)
79.    Z. Yaqoob and N. A. Riza, “Agile Optical Beam Scanner using Wavelength and Space Manipulations,” 46th Annual Symposium on Optical Science and Technology, San Diego, California USA, SPIE Proc. 4471, pp. 262-271, August 2001
80.    N. A. Riza and Z. Yaqoob, “ Intelligent multi-fiber interface module for high bit rate inter-processor data transfer,” Paper We.A.1.4, Symp. On Optical Interconnects, 27th European Conference on Optical Communication, ECOC 2001, Oct. 2, Amsterdam, Netherlands.
81.    M. J. Mughal and N. A. Riza, “65 dB dynamic range 2.8 microseconds switching speed variable fiber-optic attenuator,” 27th European Conference on Optical Communication, Post deadline paper, ECOC 2001, Vol. 6, pp. 56-57, Sep-Oct, 2001.
82.    N. A. Riza and Z. Yaqoob, “Sub-microsecond Speed Optical Coherence Tomography System Design and Analysis Using Acousto-Optics,” Coherence Domain Optical Methods in Biomedical Science and Clinical Applications VI, BiOS 2002, Photonics West, SPIE Proc. Vol. 4619, paper 07, 19-25 January 2002, San Jose, California, USA
83.    Z. Yaqoob and N. A. Riza, “High-speed scanning probes for internal and external cavity biomedical optics,” OSA Biomedical Topical Meetings, pp. 381-383, Miami, Florida, USA, April 7-10 (2002)
84.    N. A. Riza, S. A. Khan and M. A. Arain “Flexible beamformer and remoting head for optically controlled phased array antennas”, Paper No. TH4D-2, Special Session on Optical Processing of Antenna Signals, IEEE MTT-S International Microwave Symposium Digest, Vol. 3, Page 1941-1944, June 2-7, 2002.
85.    Z. Yaqoob, J. Steedle, and N. A. Riza, “Wide Angle High Speed Large Aperture Optical Scanner,” in IEEE LEOS 14th Annual Meeting, San Diego, CA, Vol. 2, pp. 616-617, Nov. 2001
86.    N. A. Riza and S. A. Khan, “Photonic beamformer with flexible interface for phased array antennas,” in IEEE LEOS 14th Annual Meeting, San Diego, CA, Vol. 2, pp. 816-817, Nov. 2001
87.    N. A. Riza and M. J. Mughal, “Fault-tolerant photonics for routing and gain controls,” WDM and Photonic Switching Devices for Network Applications III, Optoelectronics 2002, Photonics West, SPIE Proc. Vol. 4653, paper 04, 19-25 January 2002, San Jose, California, USA
88.    Z. Yaqoob and N. A. Riza, “High-speed scanning wavelength-multiplexed fiber-optic sensors for biomedicine,” The 1st IEEE International Conference on Sensors, IEEE Sensors 2002, Poster paper No. P1.36, June 12-14, 2002, Hyatt Orlando, Kissimmee, Florida USA
89.    N. A. Riza and M. A. Arain, “Sub-micron range thickness measurements using a novel scanning heterodyne optical interferometer,” The 1st IEEE International Conference on Sensors, IEEE Sensors 2002, Paper No. 25.2, June 12-14, 2002, Hyatt Orlando, Kissimmee, Florida USA.
90.    Z. Yaqoob and N. A. Riza, “ 2π sterradian coverage transmit-receive lasercom system using smart multiplexing of multiplexed optical scanners,” Freespace laser communications and Laser Imaging II, 47th Annual SPIE Meeting, 7-11 July, Seattle, Washington, USA, 2002.
91.    Z. Yaqoob and N. A. Riza, “Two-dimensional Beam Scanning using Wavelength Diversity,” in 2002 Optical Society of America Annual Meeting/LS-XVIII, Paper No. MY5, 29 September – 03 October 2002, Orlando, FL, USA.
92.    W. Sun, M. J. Mughal, W. Noell, F. Perez, N. A. Riza, and N. de Rooij, ‘Design and Simulation of a 16-bit Variable Optical Attenuator,’ Proceedings 2002 IEEE/LEOS International Conference on Optical MEMS, Lugano, Switzerland,  pp. 53-54. 2002.
93.    S. A. Khan and N. A. Riza, “Polarized Multiplexed Optical Scanner,” in IEEE LEOS 15th Annual Meeting, Glasgow, Nov. 2002.
94.    M. A. Arain and N. A. Riza, “Code Multiplexed Optical Scanner,” in IEEE LEOS 15th Annual Meeting, Glasgow, Nov. 2002.
95.    Z. Yaqoob and N. A. Riza, “Microseconds Speed Wavelength Multiplexed Optical Scanner,” in IEEE LEOS 15th Annual Meeting, Glasgow, Nov. 2002.
96.    W. Sun, J. Mughal, F. Perez, W. Noell, N. Riza and Nico De Rooij, ‘A Bulk Micromachined Tiltable Mirror Array Digital Variable Optical Attenuator,’ Transducers 03., Paper 4D.1.3, 12th IEEE International Conf. on Solid State Sensors, Actuators, and MicroSystems,  Boston. June 8-12, 2003.
97.    W. Sun, J. Mughal, F. Perez, W. Noell, N. Riza and Nico de Rooij, “A Bulk Micromachined Tiltable Mirror Array Digital Variable Optical Attenuator,” CLEO/QELS 2003. Baltimore, Maryland. 2003.
98.    Z. Yaqoob and N. A. Riza, “ Low-loss wavelength-multiplexed optical scanner using volume Bragg gratings for broadband transmit-receive lasercom systems,” SPIE Conference on Free-Space Laser Communication and Active Laser Illumination III, SPIE Proc. Vol. 5160, No. 47,  6 Aug 2003, San Diego, CA USA.
99.    S. A. Khan and N. A. Riza, “High-speed polarization multiplexed optical scanner for three-dimensional scanning applications,” SPIE Conference on Free-Space Laser Communication and Active Laser Illumination III, SPIE Proc. Vol. 5160, No. 26,  5 Aug 2003, San Diego, CA USA.
100.    N. A. Riza and M. J. Mughal, “An Approach towards the Holy Grail in All-Optical Circuit Switching: The Monster All-Optical Crossconnect,” SPIE Photonics North Conference, Paper 101-486, May 26-29, Montreal, Canada, 2003.
101.    N. A. Riza and M. J. Mughal, “The NU-POWER All-Digital Beam Profiler: A Powerful New Tool for Spatially Characterizing Laser Beams,” SPIE Photonics North Conference, Paper 101-721, May 26-29, Montreal, Canada, 2003.
102.    N. A. Riza, “Universal Optical Code Division Multiple Access (O-CDMA) Encoders/Decoders,” SPIE Photonics North Conference, Paper 101-513, May 26-29, Montreal, Canada, 2003.
103.    N. A. Riza, “Fault-Tolerant Multi-Beam Photonic Beamforming for Wideband Array Antennas,” SPIE Photonics North Conference, Paper 101-143, May 26-29, Montreal, Canada, 2003.
104.    W. Sun, J. Mughal, F. Perez, W. Noell, N. Riza and Nico De Rooij, ‘A Bulk Micromachined Tiltable Mirror Array Digital Variable Optical Attenuator,’ Optical MEMS 03., IEEE LEOS International Conf. on Optical MEMS,  Hawaii. August, 2003.
105.    Muzammil A. Arain, Nabeel A. Riza, “High-beamforming power-code-multiplexed optical scanner for three-dimensional displays,” Proc. SPIE Vol. 5243, p. 59-64, Three-Dimensional TV, Video, and Display II; Bahram Javidi, Fumio Okano; Eds., September 2003.
106.    M. J. Mughal and N. A. Riza, “Deformable micromirror-based variable fiber-optic attenuator,” NFOEC 2003 Technical Proc., pp.137-140, Orlando, FL, Sept. 2003.
107.    S. A. Khan and N. A. Riza, “High Speed Coarse-Fine Laser Beam Steering Module for Polarization-Multiplexed Optical Scanner,” IEEE LEOS Ann. Mtgs. Digest, Paper MA3, Oct.27, 2003.
108.    M. A. Arain and N. A. Riza, “Optical transceiver using Code-Multiplexed Optical Scanner,” IEEE LEOS Ann. Mtgs. Digest, Paper MA2,  Oct.27, 2003.
109.    N. A. Riza and M. J. Mughal, “Fiber-optic multi-wavelength variable attenuator using bulk acousto-optics,” International Conference on Photonics Switching: PS 2003, Versailles, France, Sept.26-Oct.2, 2003.
110.    N. A. Riza, “ High Speed Multi-Beamforming for Wideband Phased Arrays,” IEEE Microwave Photonics Topical Meeting, MWP 2003, Budapest 2003. (Invited Paper)
111.    W. Sun, M.J. Mughal, W. Noell, F. Perez, N.A. Riza, N.F. de Rooij, “Fabrication and Measurement of a Circular Digital Variable Optical Attnuator”, The IEEE/LEOS Optical MEMS 2004, pp. 35-36,Takamatsu, Japan, 2004.
112.    S. A. Khan and N. A. Riza, “Demonstration of 3-Dimensional Wide Angle No-Moving Parts Laser Beam Steering,” SPIE Annual Meeting 2004, Denver, CO, 2-6 August 2004.
113.    S. A. Khan and N. A. Riza, “High Resolution Broadband Variable Fiber-Optic Attenuator using Liquid Crystals,” Optics in the Southeast (OISE), Organized by School of Optics/CREOL University of Central Florida, SPIE and Optical Society of America, Orlando, FL, Nov. 12-13, 2003.
114.    Z. Yaqoob and N. A. Riza, “Eye-safe passive-optics no-moving parts barcode scanner,” in Photonics, Communications, and Devices, Optics in the Southeast, Orlando, FL, USA, November 12-13 (2003).
115.    N. A. Riza and Z. Yaqoob, “potential of near-infrared band optical techniques for lung imaging,” in Biophotonics, Optics in the Southeast, Paper No. SE 06 B2, Orlando, FL, USA, November 12-13 (2003).
116.    N. A. Riza, M. A. Arain, and Z. Yaqoob,  “Ultrafast optical tomography systems using coherence agility,” in Coherence Domain Optical Methods and Optical Coherence Tomography in Biomedicine VIII, BIOS 2004 Biomedical Optics, Photonics West, Proc. SPIE Vol. 5316, Paper No. 59, 24-29 January 2004, San Jose, California, USA.
117.    N. A. Riza and A. Bokhari,  “Agile Optical Confocal Microscopy Instrument Architectures For High Flexibility Imaging,” in Three Dimensional Confocal Microscopies, BIOS 2004 Biomedical Optics, Photonics West, Proc. SPIE Vol. 5324, Paper No. 14, January 2004, San Jose, California, USA.
118.    N. A. Riza and A. Bokhari,  “Agile Ultrasound Modulated Optical Tomography Techniques using Smart Fiber-Optics,” in Photons Plus Ultrasound: Imaging and Sensing,, BIOS 2004 Biomedical Optics, Photonics West, Proc. SPIE Vol. 5320, Paper No. 25, January 2004, San Jose, California, USA.
119.    W. Sun, M. J. Mughal, F. Perez, N. A. Riza, W. Noell, and Nico De Rooij, ‘Design and fabrication of a circular Digital Variable Optical Attenuator,’ Photonics Europe Conf. on MEMS, MOEMS, and Micromachining, SPIE Vol.5455, No.28, April 29-30, Strasbourg, France, 2004.
120.    Nabeel A. Riza and Muzammil A. Arain, “Code Multiplexed Holography based All-Optical N×N Swich” , Photonics in the South East, Sponsored by University of central Florida, OSA, and SPIE, SE-03-D3, Orlando, Florida, November 12-13, (2003).
121.    Muzammil A. Arain and Nabeel A. Riza, “Free Space Optical Wireless using Code-Multiplexed Optical Scanner”, INMIC 2002, December 27-28, Karachi, Pakistan.
122.     S. A. Khan and N. A. Riza, “Demonstration of 3-Dimensional Wide Angle No-Moving Parts Laser Beam Steering,” SPIE 49th Annual Meeting, SPIE Proc. Vol. 5550, Paper No.9, 2 – 6 August 2004, Denver,  Colorado.
123.    S. A. Khan and N. A. Riza, Confocal microscopy based agile optical endoscope using liquid crystals, IEEE LEOS BioPhotonics Topical Meeting, paper MA4.2, San Diego June 28, 2004.
124.    N. A. Riza and M. A. Arain, “Angstrom sensitivity polarization multiplexed heterodyne acousto-optic interferometric sensor,” The 3rd IEEE International Conference on Sensors, IEEE Sensors 2004, Paper No. W1P-P, Oct.27, 2004, Vienna, Austria.
125.    N. A. Riza, M. A. Arain, F. N. Ghauri, “ Tunable Microwave/Millimeter wave transversal filter using retroreflective spatial photonics,” IEEE Microwave Photonics Topical Meeting, MWP 2004, paper 841, Oct.4, 2004.
126.    N. A. Riza and F. N. Ghauri,, “Hybrid Design MEMS Variable Optical Attenuator for Simultaneous High Dynamic Range and High Resolution Controls,” European Conference on Optical Communication, ECOC 2004, Stockholm, Sweden,  Sept. 5-9, 2004.
127.    S. A. Khan and N. A. Riza, “Wavelength tunable and broadband variable fiber-optic attenuators using liquid crystals,” Proceedings of SPIE, Vol. 5814, Paper No. 5814-4, Enabling Photonics Technologies for Defense, Security, and Aerospace Applications, in Defense and Security Symposium 2005, Orlando, Florida, USA , March 28-April 01, 2005.
128.    F. N. Ghauri and N. A. Riza, “Super High Performance MEMS VOAs for Aerospace and Commercial Application,” Proceedings of SPIE, Vol. 5814, Paper No. 5814-22, Enabling Photonics Technologies for Defense, Security, and Aerospace Applications, in Defense and Security Symposium 2005, Orlando, Florida, USA ,  March 28-April 01, 2005.
129.    M. A. Arain and N. A. Riza, “Self Calibrating Wavelength Multiplexed Heterodyne Interferometer for Angstrom Precision Measurements,” Proceedings of SPIE, Vol. 5814, Paper No. 5814-19, Enabling Photonics Technologies for Defense, Security, and Aerospace Applications, in Defense and Security Symposium 2005, Orlando, Florida, USA ,  March 28-April 01, 2005.
130.    F. Ghauri and N. A. Riza,, “Reliable Super Resolution Beam Profiler for Lasers in Manufacturing,” CLEO 2005, May 26, Baltimore.
131.    N. A. Riza, M.A. Arain, F. Perez, “Harsh Environments Minimally Invasive Optical Sensing Technique for Extreme Temperatures: 1000 °C and Approaching 2500 °C,” International Conf. Proceedings of Optical Fiber Sensors 17 (OFS 17), SPIE Proc. Vol. 5855, pp.687-690, May 23-27, 2005 Bruges, Belgium.
132.    N. A. Riza, M. Bakker, A. Bokhari, F. Perez, “Spectral Agile Interferometric Birefringence Microscopy Instrument,” EOS Topical Meeting on Optical Imaging, Imperial College, London June 2005.
133.    N. A. Riza, “Liquid Crystal Agile Photonics – From Fiber to the Free-Space Domain,” Conf. on Liquid Crystals Optics and Applications LCOA/COO-2005, Editor, Tomasz Wolinski,  SPIE International Congress on Optics and OptoElectronics, Warsaw, Poland, Aug. 2005. (Invited Paper)
134.    N. A. Riza, “Hybrid  Photonic Signal Processing for Radio Frequency Signals,” Integrated Optics-Theory & Applications (IOTA), Editor, Tadeusz Pustelny,  SPIE International Congress on Optics and OptoElectronics, Warsaw, Poland, Aug. 2005. (Invited Paper)
135.    N. A. Riza, Farzan Ghauri, F. Perez “Hybrid  optical sensors using laser targeting,” SPIE Proc. Vol. 6189, Paper No.4, Optical Sensing II Conference, Editor, B. Culshaw,  SPIE International Photonics Europe Congress, Strasbourg, France, April 3, 2006. (Invited Paper)
136.    N. A. Riza, M. Sheikh, F. Perez, “Progress on Silicon Carbide Hybrid-Design Optical Sensors for Extreme Environments,” OSA International Optical Fiber Sensors (OFS) Conference, OFS 18, Cancun, Mexico, Oct. 2006.
137.     N. A. Riza, “Enabling the Ultimate in Optical Wireless Communications: The Zero Propagation Loss Design,” IEEE Communications Society 3rd International Symposium on High Capacity Optical Networks and Enabling Technologies (HORNET) 2006 Conference, Charlotte, NC, Sept. 6-8, 2006. (Invited Paper)
138.    N. A. Riza, M. Sheikh, G. Webb-Wood, and P. Kik, “Demonstration of Three Dimensional Imaging of Blood Vessel using a No-Moving Parts Electronic Lens-based Optical Confocal Microscope,” Conference MI03: Physics of Medical Imaging, SPIE Medical Imaging, San Diego, Feb. 2007.
139.    N. A. Riza, M. Sheikh, F. Perez “Wireless Temperature Sensors using Single Crystal Silicon Carbide – An Industrial Feasibility and Design Study,” SPIE Proc. Vol. 6585, Paper No.19, Optical Sensing III Conference, Editor, F. Baldini, J. Homola, and R. Lieberman,  SPIE International Photonics Europe Congress, Prague, Czech Republic, April 17, 2007.
140.    F. N. Ghauri and N. A. Riza,, “Multi-tap RF Transversal Filter using AOTF Double Diffraction,” CLEO 2007, May 8, Paper CTuAA Baltimore.
141.    F. N. Ghauri and N. A. Riza, “Programmable microwave transversal filter using acousto-optic tunable filtering,” Proceedings of SPIE, Vol. 6572, Paper No. 6572-07, Enabling Photonics Technologies for Defense, Security, and Aerospace Applications, in Defense and Security Symposium 2007, Orlando, Florida, USA ,  April 09, 2007.
142.    N. A. Riza and S. A. Reza, “Programmable fiber-optic splitters using distributed optical MEMS,” Proceedings of SPIE, Vol. 6572, Paper No. 6572-24, Enabling Photonics Technologies for Defense, Security, and Aerospace Applications, in Defense and Security Symposium 2007, Orlando, Florida, USA ,  April 10, 2007.
143.    N. A. Riza, S. A. Khan and M. A. Sheikh, “Non-Contact No-Moving Parts Surface Height Measurement Sensor using Liquid Crystal-based Axial Scanning
Confocal Optical Microscopy,” Proceedings of SPIE, Vol. 6572, Paper No. 6572-25, Enabling Photonics Technologies for Defense, Security, and Aerospace Applications, in Defense and Security Symposium 2007, Orlando, Florida, USA ,  April 10, 2007.
144.     N. A. Riza, M. A. Sheikh, and F. Perez, “Design and Fabrication of an Extreme Temperature Sensing Optical Probe using Silicon Carbide Technologies,” IEEE Sensors 2007 International Conference paper, Atlanta, Oct. 28-31, 2007.
145.    M. Sheikh and N. A. Riza,  “Experimental Studies of an All-Silicon Carbide Hybrid Wireless-Wired Optics Temperature Sensor for Extreme Environments in Turbines,” SPIE Proc. Vol. 7003, Paper No.A-11, Optical Sensing IV Conference, Editors, Francis Berghmans and Anna Grazia Mignani,  SPIE International Photonics Europe Congress, Strasbourg, France, April 7, 2008. (Invited paper)
146.    N. A. Riza, “Progress on Silicon Carbide Optical Sensors for Extreme Temperature Measurements in Gas Turbines,” Invited Paper & Presentation, International Instrumentation Symposium (IIS), Special Session of the Power Industry Working Group (PIWG), IIS Conf. Proceedings, Pennsacola, Florida, May 8, 2008.
147.    M. Sheikh and N. A. Riza, “Blood Vessel 3-D Imaging Using Electronically Controlled Optics Lens-Based Confocal Microscopy,” OSA Topical Meeting on  Biomedical Optics, Technical Digest, paper no. BTuF64, March 2008.
148.    N. A. Riza and M. Sheikh, “Liquid lens confocal microscopy with advanced signal processing for higher resolution 3D imaging,” Conference MI03: Physics of Medical Imaging, SPIE Medical Imaging, Vol.7258, paper No.155, Lake Buena Vista, Florida, Feb. 11, 2009.
149.    S. A. Reza and N. A. Riza, “Variable Fiber-Optic Attenuator using Optofluidics,” Proceedings of SPIE, Vol. 7339, Paper No. 11, Enabling Photonics Technologies for Defense, Security, and Aerospace Applications V, in Defense and Security Symposium 2009, Orlando, Florida, USA ,  April 13, 2009.
150.    N. A. Riza and M. A. Sheikh,  “All-Silicon Carbide Hybrid Wireless-Wired Optics Temperature Sensor: Turbine Tests and Distributed Fiber Sensor Network  Design,” SPIE Proc. Vol. 7356, Paper No.24, Optical Sensing V Conference, Editors, F. Baldini, J. Homola, and R. A. Leiberman,  SPIE International Photonics Europe Congress, Prague, Czech Republic, April 21, 2009.
151.    N. A. Riza, M. A. Sheikh, and F. Perez, “All-Silicon Carbide Hybrid Wireless-Wired Optics Extreme Temperature Sensor For Greener Next-Generation Gas Turbines,” OIDA Conference: OPTOmism: Powering the Green Revolution through Photonics, Santa Clara, May 20, 2009.
152.    N. A, Riza, “Advances in Hybrid Wireless-Wired Optics Physical Sensors for Extreme Environments ,” SPIE Proc., Optical Sensing V Conference, Editors:  F. Berghmans, A. G. Mignani, and C. A. van Hoof, SPIE International Photonics Europe Congress, Brussels, Belgium, April, 2010. (Invited paper)
153.    N. A. Riza and P. J. Marraccini, “ Broadband Fiber-Optic 1×2 Switch Using an Electrically Controlled Liquid Lens,” SPIE Conf. on Photonics in the Transportation Industry: Auto to Aerospace III, Editors: A. Kazemi and B. C. Kress, SPIE Defense Security and Sensing, Vol. 7675, No.19,  April 2010.
154.    N. A. Riza and S. A. Reza, “ Non-Contact Opto-Fluidics-based Liquid Level Sensor for Harsh Environments,” SPIE Conf. on Photonics in the Transportation Industry: Auto to Aerospace III, Editors: A. Kazemi and B. C. Kress, SPIE Defense Security and Sensing, Vol. 7675, No.2, April 2010.
155.    M. Sheikh, P. J. Marraccini and N. A. Riza, “ Laser Beam Characterization using Agile Digital-Analog  Photonics,” SPIE Conf. on Photonics in the Transportation Industry: Auto to Aerospace III, Editors: A. Kazemi and B. C. Kress, SPIE Defense Security and Sensing, Vol. 7675, No.6, April 2010.
156.    P. J. Marraccini and N. A. Riza, “ Multimode laser beam characterization using agile digital-analog photonics,” Photonic Applications for Aerospace, Transportation, and Harsh Environment II, SPIE Defense, Security, and Sensing Conf. Vol.8026, Paper 11, 25-29 April 2011.
157.    P. J. Marraccini, C. Baxley and N. A. Riza, “ Digital micromirror device-based robust object boundary mapping sensor,” Photonic Applications for Aerospace, Transportation, and Harsh Environment II, SPIE Defense, Security, and Sensing Conf. Vol.8026, Paper 9, 25-29 April 2011.
158.    P. J. Marraccini and N. A. Riza, “High resolution wide dynamic range distance sensor using spatial signal processing,” Photonic Applications for Aerospace, Transportation, and Harsh Environment II, SPIE Defense, Security, and Sensing Conf. Vol.8026, Paper 10, 25-29 April 2011.
159.    P. J. Marraccini and N. A. Riza, “Reconfigurable Visible Wireless Optical Link for Indoor Applications,” Royal Irish Academy (RIA) Communications and Radio Science Conference, Dublin, March 30, 2012.
160.    N. A. Riza, “ Flexible Agile Hybrid Optical-RF Antenna System for Communications and Radar,” 19th IEEE International Conference on Microwaves, Radar & Wireless Communications, Warsaw, Poland, May 23, 2012.
161.    N. A. Riza and P. J. Marraccini, “ Power Smart In-door Optical Wireless Link Applications,” 8th IEEE International Wireless Communications and Mobile Computing Conference (IWCMC), Limassol, Cypress, August 27-31, 2012.
162.    P. J. Marraccini and N. A. Riza, “Dual Mode Indoor Optical Wireless Data Link Design using Micro-Optics For Robust Energy Efficient Operations,” EOS Ann. Mtg. Proc., Aberdeen, 2012.
163.    N. A. Riza, “Advances in Hybrid Design Optical Sensors for Hazardous Environments of Energy Systems,” EOS Ann. Mtg. Proc., Aberdeen, 2012.
164.    N. A. Riza and M. J. Amin, “I-WMOSS: Interferometric Wavelength Multiplexed Optical Scanning Sensor,” International Symposium on Optomechatronic Technologies (ISOT)., IEEE, Paris, pp.1-4, Oct. 2012.
165.    N. A. Riza and M. J. Amin, “Smart Underwater Three Dimensional Imaging System Using Agile Spatial Processing,” paper in 3rd European Optical Society (EOS) Conference on Blue Photonics: Optics in the Sea, Netherlands, 18-20 March 2013.
166.    N. A. Riza and M. J. Amin, “Liquid Lens-based Smart Scanning Laser Projection Display,” 3rd Optofluidics EOS Conference Proc., May, Munich, 2013.
167.    N. A. Riza, “Application intelligence-based Imaging using programmable photonics,” Photonics Ireland Conference Proc., Belfast, Sept. 2013. (Invited Paper)
168.    N. A. Riza, M. J. Amin, and Mehdi Riza, “Eye Vision System using Programmable Micro-Optics and Micro-Electronics,”  SPIE BIOS International Conf. on Ophthalmic Technologies XXIV, Conf. BO111, Vol. 8930, Paper No.10, San Fran., Feb. 1, 2014.
169.    N. A. Riza, M. J. Amin, “Smart optical writing head design for laser-based manufacturing,” SPIE Photonics West Conference on Laser Applications in Microelectronic and Optoelectronic Manufacturing (LAMOM) XIX, SPIE Vol. 8967, paper No.51, Feb.4, San Francisco, 2014.
170.    M. J. Amin and N. A. Riza, “Smart image sensor using laser targeting: a multiple barcodes application,” SPIE Photonics Europe Conf. Proceedings, Vol.9141, paper No.54, Brussels, April 17, 2014.
171.    Juan Pablo La Torre, M. J. Amin, Michele Magno and N. A. Riza, “An Embedded Smart Agile Pixel Imager For Lasers,” 6th IEEE EDERC (European Embedded Design in Education & Research) Conference Sept., Milan, 2014.
172.    N. A. Riza, “Hybrid Optical Sensor for Extreme Temperature Measurement in Next Generation Higher Efficiency Greener Power Plants,” Invited paper, AMA SENSOR 2015 17th International Conference on Sensors and Measurement Technology Germany, Nuremberg, 2015.
173.    N.A.Riza and P.J.Marraccini,“Programmable optic-based robust underwater/free-space optical data transfer link designs for applications using high power lasers,” Photonics Ireland Conference Proceedings, Sept. Cork, 2015.
174.     Juan Pablo La Torre, M. J. Amin, and N. A. Riza, “Agile wavefront splitting interferometry and imaging using a digital micromirror device,”  SPIE Photonics Europe Conf. Proc. On Optics, Photonics and Digital Technologies for Imaging Applications, Vol, 9896, paper No.10, Brussels, April 2016.
175.    M. J. Amin and N. A. Riza, “Motionless active depth from defocus system using smart optics for camera autofocus applications,”  SPIE Photonics Europe Conf. Proc. on  Optics, Photonics and Digital Technologies for Imaging Applications, Vol, 9896, paper No.22, Brussels, April 2016.
176.    N. A. Riza, “Coded Access Optical Sensor (CAOS) imager and applications,” SPIE Photonics Europe Conf. Proc., on Optics, Photonics and Digital Technologies for Imaging Applications, Vol, 9896, paper No.9, Brussels, April 2016.
177.    N. A. Riza and J. P. La Torre, “CAOS-CMOS multispectral and hyperspectral camera,” OSA Congress on Light, Energy and the Environment, Topical Meeting : Hyperspectral Imaging and Sounding of the Environment (HISE), Paper No. XX, Nov. 14-17, Germany (2016).

178.  N. A. Riza, “The CAOS Camera Platform – Ushering in a Paradigm Change in Extreme Dynamic Range Imager Design,” TI Conference on DMD Technologies and Applications, SPIE OPTO, Vol. 10117, Photonics West, Jan. 30, 2017.(Invited Paper)

179.  N. A. Riza and Mohsin A. Mazhar, “ CAOS smart microscope,” Photonics Ireland Conference Proc., Galway, Ireland, Sept.11, 2017.

180. Juan Pablo La Torre, Nathan Mayes, and N. A. Riza, “Smart Art Display Projection System,” Photonics Ireland Conference Proc., Galway, Ireland, Sept.11, 2017.

181. N. A. Riza and M. A. Mazhar, “Demonstration of CAOS Smart Camera Imaging for Color and Super Blue Moon Targets,” OSA Advanced Photonics Congress, paper SeW2E.3, Zurich, July 2-5, 2018.
182.  N. A. Riza and M. A. Mazhar, “111 dB Dynamic Range Laser beam Imaging with the Digital MEMS-based CAOS Smart Camera,” IEEE Optical MEMS Conf. Proc, July 30, 2018.
183.  N. A. Riza, “Digital MEMS CAOS Camceiver and a User Positioning and IR ID Data Monitoring System for Indoor Optical and RF Wireless Environments,” IEEE Optical MEMS Conf. Proc, July, 2018.
184. N. A. Riza, “CAOS Camera Technology – Empowering Laser Metrology,” Invited paper, European Optical Society Biennial Meeting, Conference on Frontiers in Optical Metrology, Delft, Netherlands, Oct., 2018.

185. N. A. Riza and M. A. Mazhar, “The CAOS Camera – Unleashing the Power of Full Spectrum Extreme Linear Dynamic Ranging Imaging,” 1^st IEEE British and Irish Conf. on Photonics (BICOP) Proc, Dec.12-14, Royal Society, London, 2018 (Invited Paper).

186. N. A. Riza, “The Camceiver: Empowering Robust Agile Indoor Optical Wireless for Massive Data Centres,” in 42nd IEEE International Conference on Telecommunications and Signal Processing (TSP), pp. 445-448, July 2019.

187. N. A. Riza, “The CAOS Camera – Empowering Full Spectrum Extreme Linear Dynamic Range Imaging,” International Society for Imaging Science and Technology (IS & T) 27th Color and Imaging Conference (CIC) Proc. Abstract, Paris, France, Oct.25, 2019.

188. N. A. Riza and M. A. Mazhar, “Robust Testing of Displays using the Extreme Linear Dynamic Range CAOS Camera,” 2nd IEEE British and Irish Conf. on Photonics (BICOP) Proc, Dec.11-13, IET Society Savoy Place, London, 2019.

189. N. A. Riza and M. A. Mazhar, “ Robust Low Contrast Image Recovery over 90 dB Scene Linear Dynamic Range using CAOS Camera,” paper in the IS & T 2020 Electronic Imaging Conference Proc., Burlingame, California, USA, Jan.26-30, 2020.

190. N. A. Riza and N. Ashraf, “Calibration Empowered Minimalistic Multi-Exposure Image Processing Technique for Camera Linear Dynamic Range Extension,” paper in the IS & T Electronic Imaging Conference Proc., Burlingame, California, USA, Jan.26-30, 2020.

191. N. A. Riza, “Thinking Camera–Powered by the CAOS Camera Platform,” European Optical Society Annual Meeting (EOSAM) Proc., in EPJ Web of Conferences (Vol. 238, p. 06012). EDP Sciences, Portugal (on-line) Sep.1, 2020.
192. N. A. Riza and M. A. Mazhar, “MEMS-based CAOS Smart Camera 177 dB Linear Extreme Dynamic Range Imaging Tests with Calibrated and Controlled Incoherent White Light and Laser Light Targets,” European Optical Society Annual Meeting (EOSAM) Proc., in EPJ Web of Conferences (Vol. 238, p. 12008). EDP Sciences, Portugal (on-line) Sep.1, 2020.
193. N. A. Riza, N. Ashraf & M. Mazhar, “Optimizing the CMOS Sensor-Mode for Extreme Linear Dynamic Range MEMS-based CAOS Smart Camera Imaging,” European Optical Society Annual Meeting (EOSAM) Proc., in EPJ Web of Conferences (Vol. 238, p. 12007). EDP Sciences, Portugal (on-line) Sep.1, 2020.

194.  N. A. Riza, M. A. Mazhar and N. Ashraf, “Solar Limb Darkening Color Imaging of the Sun with the Extreme Brightness Capability CAOS Camera,” IS & T London Imaging Meeting Conf. paper, London (on-line) Sep.28, 2020.
195. N. A. Riza, “Liquids Inspection via Visible to Near Infrared to Short-Wave Infrared Bands Linear High Dynamic Range Capability Smart CAOS Camera,” IEEE ISSC Conference Proc. paper, June 9-10, Cork, Ireland, 2022.

196. N. A. Riza, “Smart Optical Beamforming for Next Generation Wireless Empowered Communications, Power Transfer, Sensing and Displays: Building on the Past,” IEEE ISSC Conference Proc. paper, June 9-10, Cork, Ireland, 2022.
197. N. A. Riza, “First Demonstration of Silicon Wafer Inspection Capability using Visible to Short-Wave Infrared CAOS Camera,” Optica/OSA Applied Industrial Optics Topical Meeting Conference Proc. paper, July 25-27, Dublin, Ireland, 2022.
198. N. A. Riza, “Digital MEMS-based Smart CAOS Camera Enabling Image Contrast Detection under Bright Light Interference,” ICO-25 Conference Proc. paper, Sept.5-9, Dresden, Germany, 2022.

Patents

[1] N.A. Riza, “Reversible time delay beamforming optical architecture for phased array antennas,” U.S.A. Patent No. 5,117,239, May 26, 1992.
[2] N.A. Riza, “Reversible time delay beamforming optical architecture for phased array antennas,” Europian Patent No. 92303635.4, July 07, 1992.
[3] N. A. Riza, “Compact wide tunable bandwidth phased array antenna controller,” U.S.A. Patent No. 5,187,487, Feb.16, 1993.
[4] N. A. Riza, “Phased array antenna controller,” U.S.A. Patent No. 5,191,339, March 02, 1993.
[5] N. A. Riza and D. L. Polla, “Micro-dynamical fiber-optic switch,” U.S.A. Patent No.5,208,880, May 4,   1993.
[6] N. A. Riza, “Time multiplexed phased array antenna beam switching system,” U.S.A. Patent No. 5,231,405, July 27, 1993.
[7] N. A. Riza, “Optical controller with independent two dimensional scanning,” U.S.A. Patent No.5,274,381, Dec.28, 1993.
[8] N. A. Riza, “Optical time delay units for phased array antennas,” U.S.A. Patent No.5,274,385, Dec.28, 1993.
[9] N. A. Riza, “An optically controlled phased array radar,” U.S.A. Patent 5,307,073, April 26, 1994.
[10] M. C. DeJule, T. L. Credelle, N. A. Riza, and D. E. Castlebery, “Compact polarization independent optical switching units,” U.S.A. Patent No. 5,319,477, June 7, 1994.
[11] N. A. Riza, “An optical transversal filter,” U.S.A. Patent No. 5,329,118, July 12, 1994.
[12] M. C. DeJule, T. L. Credelle, N. A. Riza, and D. E. Castlebery, “ “Compact polarization dependent optical switching units,” U.S.A. Patent No. 5,345,321, Sept. 06, 1994.
[13] M. C. DeJule, N. A. Riza, D. E. Castlebery, and T. L. Credelle, “Optical interferometric device with spatial light modulators for switching substantially coherent light,” U.S.A. Patent No. 5,373,393, Dec. 13, 1994.
[14] N. A. Riza, J. E. Hershey, and A.  A. Hassan, “Optical communication system using coplanar light modulators,” U.S.A. Patent No. 5,410,147, April 25, 1995.
[15] N. A. Riza and M. C. DeJule, “High signal-to-noise ratio optical signal processing system,” U.S.A. Patent No. 5,400,038, March 21, 1995.
[16] N. A. Riza, D. E. Castleberry, T. L. Credelle, and M. C. DeJule “Interferometric spatial switch for polarized or unpolarized light using liquid crystal,” U.S.A. Patent No.5,477,350, Dec. 19, 1995.
[17] N. A. Riza, “Optical beam steering system,” USA Patent No. 5,512,907, April 30, 1994
[18] N. A. Riza, “Fast switching liquid crystal switching unit,” USA Patent No. 5,568,286, Oct.22, 1996.
[19] J. E. Hershey,  N. A. Riza,  and A. A. Hassan, “Optical synchronization algorithm and apparatus,” USA Patent No. 5,532,860, July 2, 1996.
[20] M. C. DeJule and N. A. Riza, “Programmable liquid crystal wavefront device,” USA Patent No. 5,594,565, Jan.14, 1997.
[21] M. C. DeJule and N. A. Riza, “Three terminal liquid crystal lens cell,” USA Patent No. 5,617,109, April 1, 1997.
[22] N. A. Riza, “Scanning heterodyne acousto-optical interferometers,” USA Patent No. 5,694,216, Dec. 2, 1997.
[23]   N. A. Riza, “Compact optical controller for phased array systems,” USA Patent No. 5,731,790, March 24, 1998.
[24] N. A. Riza, “ Photonically Controlled Ultrasonic Arrays,” Patent No. 5,718,226, Feb.17, 1998.
[25] N. A. Riza, “Digitally Control Polarization-based Optical Scanner,” US Patent 6,031,658, Feb.29, 2000.
[26] N. A. Riza, “ Fault-tolerant fiber-optical beam control modules,” Patent No. 6,222,954, April 24, 2001.
[27] N. A. Riza, “ High speed fiber-optic switch,” Patent No. 6,282,336, August 28, 2001.
[28] N. A. Riza, “ Polarization-based fiber-optic switch,” Patent No. 6,360,037, March 19, 2002.
[29] N. A. Riza, “ Multi-technology multi-beam-former platform for robust fiber-optical beam control modules,” Patent No. 6,525,863, Feb. 25, 2003.
[30] N. A. Riza, “High resolution fault-tolerant fiber-optical beam control modules,” Patent No. 6,563,974, May 13, 2003.
[31] N. A. Riza, “Multiplexed Optical Scanner Technology,” Patent No. 6,687,036, Feb.3, 2004.
[32] N. A. Riza, “Fault-tolerant fiber-optical multiwavelength processor,” Patent No. 6,859,578 B2, Feb. 22, 2005.
[33] N. A. Riza, “ High speed fiber-optic attenuation modules,” Patent No. 6,885,807, April 26, 2005.
[34] N. A. Riza, “Digital optical beam profiler,” Patent No. 6,922,233, July 26, 2005.
[35] N. A. Riza and M. J. Mughal, “ Electronically tunable optical filtering modules,” Patent No. 6,982,818, January 3, 2006.
[36] N. A. Riza and M. J. Mughal, “Digital optical beam profiler,” Patent No. 7,092,079, August 15, 2006.
[37] N. A. Riza, F. Perez, A. Bokhari, “ Agile spectral interferometric microscopy,” Patent No. 7,180,602 B2, Feb. 20, 2007.
[38] N. A. Riza and F. A. Perez, “ High temperature minimally invasive optical sensing modules, US Patent No. 7,327,472, Feb.5, 2008.
[39] N. A. Riza, “Fault-tolerant fiber-optical beam control modules,” US Patent No. RE42,124, February 8, 2011.

[40] N. A. Riza, Methods and systems for realizing high resolution three-dimensional optical imaging, US Patent No. 7,978,346, July 12, 2011.
[41] N. A. Riza and F. Perez, Optical sensor for extreme environments, US Patent 8,035,822, Oct.11, 2011.
[42] N. A. Riza and F. Perez, Extreme Temperature Robust Optical Sensor Design And Fault-Tolerant Signal Processing, USA Patent 8,096,704, Jan.17, 2012.
[43] N. A. Riza, Hybrid optical distance sensor, USA Patent 8,107,056, Jan.31, 2012.
[44] N. A. Riza, Hybrid Photonic Signal Processing Modules, USA Patent 8,170,384, May 1, 2012.
[45] N. A. Riza and F. Perez, Spatially Smart Optical Sensing and Scanning, USA Patent 8,213,022, July 3, 2012.
[46] N. A. Riza and H. Foroosh, Hybrid differential optical sensing imager, USA Patent 8,587,686, Nov.19, 2013.
[47] N. A. Riza, Compressive optical display and imager, USA Patent 8,783,874, July 22, 2014.

[48] N. A. Riza, Coded Access Optical Sensor (CAOS), USA Patent 10,356,392 B2, July 16, 2019.

[49] N. A. Riza, “Smart photonic imaging method and apparatus,” USA Patent 10,721,411 B2, July 21, 2020.

[50]N. A. Riza, Smart Coded Access Optical Sensor (CAOS), USA Patent 11,175,489, Nov.16, 2021.

Other Publications

1.    N. A. Riza, Special Issue Guest Editor of the SPIE Optical Processing Working Group NewsLetter on the Topic Photonics and Phased Array Systems (PAPAS), Vol.10, No.1, April 1999.

2.    N. A. Riza, “Coherent Optical Correlator with Wideband Signal Processing Capabilities,” SPIE’s International Technical Working Group on Optical Processing & Computing Newsletter, Nov., 1993.

3.    N. A. Riza, Special Issue Guest Editor of the SPIE Optical Processing Working Group NewsLetter on the Topic “Freespace Optical Wireless,”  October 2001.

4.    N. A. Riza, Organizer and Chair, 2002 IEEE LEOS Annual Meeting Special Symp. of Agile Laser Beams and Applications, Glasgow , Scotland, Nov. 2002.

5.    N. A. Riza, Organizer and Panel Chair: Optical Devices – Research Perspectives from the School of Optics/CREOL at the University of Central Florida, 2003 National Fiber Optics Engineers Conference (NFOEC), Sept.10, Orlando, FL 2003.

6.    N. A. Riza, “Prof. Hermann Haus Memorial,” IEEE LEOS News Letter Magazine, August 2003. http://www.ieee.org/organizations/pubs/newsletters/leos/aug03/haus.html

7.    N. A. Riza, “Growth by Empowering Student Members,” IEEE LEOS News Letter Magazine, Feb. 2005. http://www.ieee.org/organizations/pubs/newsletters/leos/feb05/growth.html

8.    Mechanical Profilers Go Digital by N. A. Riza, LaserFocus World Magazine, August 2004.

9. Seeing the Unseen with the CAOS Camera by N. A. Riza, Engineers Ireland Magazine, Nov. 2016.

10.  The CAOS Smart Camera – Empowering Extreme Imaging by N. A. Riza, Photonics Spectra USA Magazine, March 2017.