Dr. Ranjit D. Pradhan Profile

Dr. Ranjit D. Pradhan

at Physical Optics Corp

SPIE Involvement:

Author

Publications (20)

Proceedings Article | 12 May 2016 Paper

Target-oriented binary sensor sets in C3I systems

Tomasz Jannson, Volodymyr Romanov, Thomas Forrester, Wenjian Wang, Andrew Kostrzewski, Ranjit Pradhan

Proceedings Volume 9825, 98250J (2016) https://doi.org/10.1117/12.2220827

KEYWORDS: Medicine, Sensors, Binary data, Intelligence systems, C3I, Infrared sensors, CCD image sensors, CCD cameras, Infrared cameras, Bayesian inference, Homeland security, Target detection, LIDAR, Radar

Read Abstract +

Proceedings Article | 29 May 2014 Paper

Bayesian truthing and experimental validation in homeland security and defense

Tomasz Jannson, Thomas Forrester, Wenjian Wang, Andrew Kostrzewski, Ranjit Pradhan

Proceedings Volume 9074, 90740M (2014) https://doi.org/10.1117/12.2049027

KEYWORDS: Binary data, Sensors, X-rays, Intelligence systems, Inspection, Homeland security, Target recognition, Signal to noise ratio, Mammography, Explosives

Read Abstract +

Proceedings Article | 30 September 2013 Paper

John Caulfield at POC: from holographic components to small system integration

Tomasz Jannson, Andrew Kostrzewskik, Thomas Forrester, Ranjit Pradhan, Wenjian Wang

Proceedings Volume 8833, 883302 (2013) https://doi.org/10.1117/12.2022248

KEYWORDS: System integration, Electronics, Mirrors, Sensors, Oscillators, Holography, Eye, Binary data, Clouds, Bayesian inference

Read Abstract +

Proceedings Article | 6 June 2013 Paper

Power line field sensing to support autonomous navigation of small unmanned aerial vehicles

John Matthews, Leonid Bukshpun, Ranjit Pradhan

Proceedings Volume 8711, 87110V (2013) https://doi.org/10.1117/12.2016173

KEYWORDS: Magnetism, Interference (communication), Magnetic sensors, Signal detection, Signal to noise ratio, Unmanned aerial vehicles, Navigation systems, Sensors, Data modeling, Environmental sensing

Read Abstract +

Proceedings Article | 18 June 2012 Paper

Novel mechanism of network protection against the new generation of cyber attacks

Alexander Milovanov, Leonid Bukshpun, Ranjit Pradhan

Proceedings Volume 8359, 835904 (2012) https://doi.org/10.1117/12.921027

KEYWORDS: Network security, Computer intrusion detection, Reconnaissance, Information security, Defense and security, Homeland security, Network architectures, Reconnaissance systems, Computer security, Integration

Read Abstract +

Proceedings Article | 18 June 2012 Paper

Resource management tools based on renewable energy sources

Tomasz Jannson, Thomas Forrester, Pedram Boghrat, Ranjit Pradhan, Andrew Kostrzewski

Proceedings Volume 8359, 83590K (2012) https://doi.org/10.1117/12.920333

KEYWORDS: Solar energy, Wind energy, Renewable energy, Energy harvesting, Information operations, Associative arrays, Cesium, Homeland security, Telecommunications, Acoustics

Read Abstract +

Proceedings Article | 8 September 2011 Paper

A novel photonic magnetometer for detection of low frequency magnetic fields

John Matthews, Leonid Bukshpun, Ranjit Pradhan

Proceedings Volume 8120, 81201P (2011) https://doi.org/10.1117/12.897421

KEYWORDS: Sensors, Magnetic sensors, Magnetism, Magnetometers, Interferometers, Photodetectors, Signal detection, Waveguides, Magnetostrictive materials, Fiber optics

Read Abstract +

Proceedings Article | 27 May 2011 Paper

Novel technology for enhanced security and trust in communication networks

Alexander Milovanov, Leonid Bukshpun, Ranjit Pradhan, Tomasz Jannson

Proceedings Volume 8063, 806304 (2011) https://doi.org/10.1117/12.883541

KEYWORDS: Network security, Computer security, Security technologies, Data communications, Telecommunications, Binary data, Receivers, Wireless communications, Algorithm development, Cryptanalysis

Read Abstract +

Proceedings Article | 5 May 2010 Paper

Bayesian performance metrics and small system integration in recent homeland security and defense applications

Tomasz Jannson, Andrew Kostrzewski, Edward Patton, Ranjit Pradhan, Min-Yi Shih, Kevin Walter, Gajendra Savant, Rick Shie, Thomas Forrester

Proceedings Volume 7666, 76660U (2010) https://doi.org/10.1117/12.850539

KEYWORDS: Explosives, Binary data, System integration, Sensors, Homeland security, Bayesian inference, Electronics, Inspection, Defense and security, Commercial off the shelf technology

Read Abstract +

Proceedings Article | 14 September 2007 Paper

Modeling of non-Lambertian sources in lighting applications

Mark Bennahmias, Engin Arik, Kevin Yu, Dmitry Voloshenko, Kangbin Chua, Ranjit Pradhan, Thomas Forrester, Tomasz Jannson

Proceedings Volume 6669, 66691A (2007) https://doi.org/10.1117/12.732654

KEYWORDS: Light emitting diodes, Light sources and illumination, Solid state lighting, Spherical lenses, Near field optics, Sensors, Optical testing, General lighting, Cadmium, Calibration

Read Abstract +

Proceedings Article | 3 May 2007 Paper

High-speed nano-optical photodetector for free space communication

Russell Kurtz, Khan Alim, Ranjit Pradhan, Vladimir Esterkin, Gajendra Savant, Rama Venkatasubramanian, Minjoo Larry Lee, Suchismita Ghosh, Irene Calizo, Alexander Balandin

Proceedings Volume 6556, 65560H (2007) https://doi.org/10.1117/12.721336

KEYWORDS: Photodetectors, Silicon, Sensors, Telecommunications, Capacitance, Data communications, Semiconducting wafers, Raman spectroscopy, Modulation, Analog electronics

Read Abstract +

Proceedings Article | 26 April 2007 Paper

Brightness limitations in integrated lighting systems

Tomasz Jannson, Engin Arik, Mark Bennahmias, Nanda Nathan, Sam Wang, Kang-Bin Chua, Ranjit Pradhan, Thomas Forrester, Kevin Yu

Proceedings Volume 6558, 65580L (2007) https://doi.org/10.1117/12.718779

KEYWORDS: Diffusers, Holography, Light sources and illumination, Thermodynamics, Light emitting diodes, Scattering, Geometrical optics, Photometry, Diffusion, Cadmium

Read Abstract +

Proceedings Article | 24 August 2006 Paper

High-frequency photorefractive amplification for ATR applications

Russell Kurtz, Albert Okorogu, Judy Piranian, Gilda Fathi, Kang-Bin Chua, Ranjit Pradhan, Thomas Forrester, Tomasz Jannson

Proceedings Volume 6314, 63140O (2006) https://doi.org/10.1117/12.679763

KEYWORDS: Crystals, Automatic target recognition, Modulators, Laser crystals, Photorefraction, Copper, Vibrometry, Phase modulation, Terahertz radiation, Amplitude modulation

Read Abstract +

Proceedings Article | 13 September 2005 Paper

High speed nanotechnology-based photodetector

Russell Kurtz, Ranjit Pradhan, Alexander Parfenov, Jason Holmstedt, Vladimir Esterkin, Naresh Menon, Tin Aye, Kang-Bin Chua, Axel Schindler, Alexander Balandin, James Nichter

Proceedings Volume 5925, 59250T (2005) https://doi.org/10.1117/12.617888

KEYWORDS: Photodetectors, Quantum dots, Silicon, Sensors, Telecommunications, Germanium, Capacitance, Semiconducting wafers, Amplifiers, Superlattices

Read Abstract +

Proceedings Article | 25 May 2005 Paper

Development of an automultiscopic true 3D display

Russell Kurtz, Ranjit Pradhan, Tin Aye, Kevin Yu, Albert Okorogu, Kang-Bin Chua, Nay Tun, Tin Win, Axel Schindler

Proceedings Volume 5801, (2005) https://doi.org/10.1117/12.604052

KEYWORDS: 3D displays, 3D image processing, Eye, Glasses, Holography, Autostereoscopic displays, Volume holography, 3D vision, Holographic optical elements, 3D volumetric displays

Read Abstract +

Proceedings Article | 19 May 2005 Paper

Image tiling for a high-resolution helmet-mounted display

Russell Kurtz, Ranjit Pradhan, Tin Aye, Kang-Bin Chua, Indra Tengara, Nay Tun, Tin Win, Jason Holmstedt, Axel Schindler, Steffen Hergert

Proceedings Volume 5800, (2005) https://doi.org/10.1117/12.604157

KEYWORDS: Head-mounted displays, Image resolution, Spatial light modulators, Prototyping, Eye, Modulation transfer functions, LCDs, Projection systems, Analog electronics, Liquid crystal on silicon

Read Abstract +

Proceedings Article | 28 March 2005 Paper

A new approach to wideband scene projection

Russell Kurtz, Alexander Parfenov, Ranjit Pradhan, Tin Aye, Gajendra Savant, Nay Tun, Tin Win, Jason Holmstedt, Axel Schindler

Proceedings Volume 5813, (2005) https://doi.org/10.1117/12.604142

KEYWORDS: Sensors, Projection systems, Long wavelength infrared, Mid-IR, Visible radiation, Imaging systems, Infrared imaging, Reflectivity, Infrared radiation, Modulation transfer functions

Read Abstract +

Proceedings Article | 8 September 2004 Paper

Injection-locking efficiency of two independent lasers

Russell Kurtz, Ranjit Pradhan, Nay Tun, Tin Aye, Gajendra Savant, Tomasz Jannson, Larry DeShazer

Proceedings Volume 5413, (2004) https://doi.org/10.1117/12.543838

KEYWORDS: Laser damage threshold, Mirrors, Oscillators, Reflectivity, Laser systems engineering, Laser applications, Laser crystals, Solid state lasers, Mode locking, Nd:YAG lasers

Read Abstract +

Proceedings Article | 2 September 2004 Paper

Reflection shearography for nondestructive evaluation

Russell Kurtz, Michael Piliavin, Ranjit Pradhan, Tin Aye, Gajendra Savant, Tomasz Jannson, Steffen Hergert

Proceedings Volume 5422, (2004) https://doi.org/10.1117/12.543840

KEYWORDS: Shearography, Reflectivity, Nondestructive evaluation, Signal to noise ratio, Interferometry, Reflection, Speckle, Fourier transforms, Ultrasonics, Laser interferometry

Read Abstract +

Proceedings Article | 1 September 2004 Paper

Long-range phase-conjugate interferometry

Russell Kurtz, Ranjit Pradhan, Tin Aye, Gajendra Savant, Tomasz Jannson, Marvin Klein

Proceedings Volume 5418, (2004) https://doi.org/10.1117/12.543824

KEYWORDS: Phase conjugation, Interferometry, Mirrors, Distance measurement, Motion measurement, Sensors, Interferometers, Beam splitters, Optical interferometry, Laser interferometry

Read Abstract +

Showing 5 of 20 publications

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Keywords/Phrases

Search In:

Publication Years