Dr. Ravindra A. Athale Profile

Dr. Ravindra A. Athale

Program Manager at Mitre Corp

SPIE Involvement:

Author

SPIE Journal Paper | 8 November 2013 Open Access

Special Section Guest Editorial: Gradient Index Optics

Predrag Milojkovic, Stefanie Tompkins, Ravindra Athale

OE, Vol. 52, Issue 11, 112101, (November 2013) https://doi.org/10.1117/12.10.1117/1.OE.52.11.112101

KEYWORDS: Lenses, GRIN lenses, Gradient-index optics, Refractive index, Imaging systems, Optical design, Lens design, Metrology, Astronomical imaging, Polymers

Read Abstract +

DOWNLOAD PAPER

Proceedings Article | 28 August 2010 Paper

Point spread function engineering as a framework for designing and analyzing computational imaging systems

Ravindra Athale, Joseph Mait

Proceedings Volume 7818, 781804 (2010) https://doi.org/10.1117/12.862930

KEYWORDS: Point spread functions, Imaging systems, Imaging spectroscopy, Spectroscopy, Computing systems, Sensors, Multiplexing, Optical design, Computational imaging, Detector arrays

Read Abstract +

Proceedings Article | 4 May 2010 Paper

An alternative approach to infrared optics

Rick Morrison, Ronald Stack, Gary Euliss, Ravindra Athale, Colin Reese, Jay Vizgaitis, James Stevens, Eric Tremblay, Joseph Ford

Proceedings Volume 7660, 76601Y (2010) https://doi.org/10.1117/12.853851

KEYWORDS: Imaging systems, Cameras, Long wavelength infrared, Modulation transfer functions, Sensors, Visible radiation, Lens design, Solids, Thermography, Reflectivity

Read Abstract +

Proceedings Article | 22 August 2009 Paper

Modified light field architecture for reconfigurable multimode imaging

Roarke Horstmeyer, Ravindra Athale, Gary Euliss

Proceedings Volume 7468, 746804 (2009) https://doi.org/10.1117/12.828653

KEYWORDS: Optical filters, Cameras, Staring arrays, Sensors, Image filtering, Spectral resolution, Imaging systems, Spatial resolution, Imaging arrays, Point spread functions

Read Abstract +

SPIE Journal Paper | 1 March 2009

Photonic crystal filters for multi-band optical filtering on a monolithic substrate

Gary Shambat, Mark Mirotznik, Gary Euliss, Viktor Smolski, Eric Johnson, Ravindra Athale

JNP, Vol. 3, Issue 01, 031506, (March 2009) https://doi.org/10.1117/12.10.1117/1.3110223

KEYWORDS: Optical filters, Dielectrics, Dielectric filters, Photonic crystals, Eye, Refractive index, Silicon, Oximetry, Digital filtering, Electromagnetism

Read Abstract +

Proceedings Article | 10 September 2008 Paper

Reconfigurable photonic crystal filters for multi-band optical filtering on a monolithic substrate

Gary Shambat, Ravindra Athale, Gary Euliss, Mark Mirotznik, Eric Johnson, Viktor Smolski

Proceedings Volume 7041, 70410P (2008) https://doi.org/10.1117/12.794239

KEYWORDS: Optical filters, Dielectric filters, Dielectrics, Photonic crystals, RGB color model, Eye, Refractive index, Silica, Oximetry, Absorption filters

Read Abstract +

Proceedings Article | 19 August 2008 Paper

Pupil plane multiplexing for multi-domain imaging sensors

Roarke Horstmeyer, Gary Euliss, Ravindra Athale, Rick Morrison, Ronald Stack, Joseph Ford

Proceedings Volume 7096, 709605 (2008) https://doi.org/10.1117/12.797772

KEYWORDS: Polarization, Point spread functions, Polarizers, Imaging systems, Polarimetry, Multiplexing, Sensors, Photomasks, Image segmentation, Image filtering

Read Abstract +

Proceedings Article | 16 April 2008 Paper

Analysis of laser-ranging technology for sense and avoid operation of unmanned aircraft systems: the tradeoff between resolution and power

Gary Euliss, Alan Christiansen, Ravi Athale

Proceedings Volume 6962, 696208 (2008) https://doi.org/10.1117/12.777562

KEYWORDS: Sensors, Spatial resolution, Signal to noise ratio, Laser applications, Pulsed laser operation, Ranging, Video, LIDAR, Transmitters, Optical resolution

Read Abstract +

Proceedings Article | 25 March 2008 Paper

Scaling analysis of computational imaging systems

Ravi Athale, Gary Euliss, Joseph Mait

Proceedings Volume 6978, 69780H (2008) https://doi.org/10.1117/12.780001

KEYWORDS: Imaging systems, Sensors, Computational imaging, Optical design, Computing systems, Optical components, Analytical research, Signal processing, Detector arrays, Image processing

Read Abstract +

Proceedings Article | 6 October 2003 Open Access

Visual experimentation

Ravindra Athale, Joseph van der Gracht

Proceedings Volume 9663, 96630B (2003) https://doi.org/10.1117/12.2208376

KEYWORDS: Visualization, Computer generated holography, Visual optics, Photonics, Electrochemical etching, Diffraction gratings, Spectroscopy, Light sources, Reflectivity, Optical filters

Read Abstract +

DOWNLOAD PAPER

Proceedings Article | 15 May 1997 Paper

CO-OP DOE foundry process results

Thomas Werner, J. Allen Cox, J. Gieske, K. Hewitt, Kannan Raj, Ravindra Athale

Proceedings Volume 3010, (1997) https://doi.org/10.1117/12.274405

KEYWORDS: Semiconducting wafers, Etching, Optical alignment, Diffractive optical elements, Photomasks, Diffraction, Error analysis, Optoelectronics, Imaging arrays, Computer generated holography

Read Abstract +

Proceedings Article | 7 May 1996 Paper

Multiproject foundry fabrication of diffractive optics

Ravindra Athale, Kannan Raj

Proceedings Volume 2689, (1996) https://doi.org/10.1117/12.239616

KEYWORDS: Diffractive optical elements, Computer generated holography, Photomasks, Etching, Wafer-level optics, Chemical elements, Semiconducting wafers, Prototyping, Optical design, Photoresist materials

Read Abstract +

SPIE Journal Paper | 1 September 1994 Open Access

Book Review: Optical Interconnection: Foundations and Applications. By Christopher Tocci and H. John Caulfield

Ravindra Athale

OE, Vol. 33, Issue 09, (September 1994) https://doi.org/10.1117/12.10.1117/1.OE.33.9.bkrvw1

DOWNLOAD PAPER

Proceedings Article | 1 March 1994 Paper

Role of coherence in optical pattern recognition

Joseph van der Gracht, Joseph Mait, Dennis Prather, Ravindra Athale

Proceedings Volume 2237, (1994) https://doi.org/10.1117/12.169418

KEYWORDS: Point spread functions, Spatial light modulators, Optical correlators, Optical pattern recognition, Signal to noise ratio, Optical signal processing, Phase only filters, Phase shift keying, Image processing, Modulation

Read Abstract +

Proceedings Article | 2 December 1992 Paper

Minimum-complexity optical architecture for look-up table computation in the residue number system

Ravindra Athale, Michael Haney, James Levy, Gary Euliss

Proceedings Volume 1703, (1992) https://doi.org/10.1117/12.138410

KEYWORDS: Radon, Modulators, Spatial light modulators, Computing systems, Light emitting diodes, Semiconductor lasers, Computer architecture, Switching, Binary data, Active optics

Read Abstract +

Proceedings Article | 16 November 1992 Paper

Optical processing and computing

Ravindra Athale

Proceedings Volume 10269, 1026906 (1992) https://doi.org/10.1117/12.161583

KEYWORDS: Optical signal processing, Data processing

Read Abstract +

Proceedings Article | 1 July 1992 Paper

Optical winner-take-all neural network using electron trapping materials

Xiangyang Yang, William Seiderman, Ravindra Athale, Michael Astor

Proceedings Volume 1701, (1992) https://doi.org/10.1117/12.138338

KEYWORDS: Neurons, Neural networks, Optical networks, Optical pattern recognition, Spatial light modulators, Analog electronics, Network architectures, Feedback loops, Information operations, Signal detection

Read Abstract +