Dr. Kristina M. Johnson Profile

Dr. Kristina M. Johnson

CEO & Founder/Chancellor of The State Univ. of New York System at Cube Hydro Partners LLC

SPIE Involvement:

Author

Publications (23)

SPIE Journal Paper | 1 December 2006

Fast-switching liquid-crystal-on-silicon microdisplay with framebuffer pixels and surface-mode optically compensated birefringence

Sangrok Lee, Chongchang Mao, Kristina Johnson

OE, Vol. 45, Issue 12, 127402, (December 2006) https://doi.org/10.1117/12.10.1117/1.2403122

KEYWORDS: Liquid crystal on silicon, Liquid crystals, Switching, Birefringence, Electro optics, Capacitors, Optical engineering, Electrodes, Dielectrics, Anisotropy

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Proceedings Article | 25 October 1999 Paper

Field-of-view analysis of liquid crystal polymer polarizing elements

Marko Voitel, Kristina Johnson, Michael Robinson

Proceedings Volume 3754, (1999) https://doi.org/10.1117/12.366337

KEYWORDS: Birefringence, Thin films, Polarizers, Wave plates, Polarization, Transmittance, Refraction, Liquid crystals, Beam splitters, Reflectivity

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Proceedings Article | 14 October 1998 Paper

Polarization-insensitive tunable liquid crystal Fabry-Perot filter incorporating polymer liquid crystal waveplates

Yoriko Morita, Kristina Johnson

Proceedings Volume 3475, (1998) https://doi.org/10.1117/12.326901

KEYWORDS: Liquid crystals, Wave plates, Photonic integrated circuits, Fabry–Perot interferometers, Optical filters, Tunable filters, Polymers, Birefringence, Epoxies, Polarization

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Proceedings Article | 1 October 1998 Paper

Intelligent data elimination for a rare event application

Ramkumar Narayanswamy, John Metz, Kristina Johnson

Proceedings Volume 3460, (1998) https://doi.org/10.1117/12.323161

KEYWORDS: Tin, Integrated optics, Inspection, Neural networks, Image classification, Image segmentation, Detection and tracking algorithms, Artificial neural networks, Evolutionary algorithms, Blood

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Proceedings Article | 20 April 1998 Paper

Assembly and packaging of liquid-crystal-on-silicon displays

Peter Kazlas, Kristina Johnson, Yung-Cheng Lee, Saeed Hareb

Proceedings Volume 3289, (1998) https://doi.org/10.1117/12.305491

KEYWORDS: Liquid crystal on silicon, LCDs, Semiconducting wafers, Packaging, Liquid crystals, Glasses, Reflectivity, Spatial light modulators, Reflective displays, Silicon

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Proceedings Article | 7 July 1997 Paper

Broadband beam steering

Jay Stockley, Steven Serati, Gary Sharp, Ping Wang, Ken Walsh, Kristina Johnson

Proceedings Volume 3131, (1997) https://doi.org/10.1117/12.277739

KEYWORDS: Wave plates, Phase shifts, Liquid crystals, Modulation, Phase shift keying, Polarization, Colorimetry, Transformers, Modulators, Diffraction gratings

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Proceedings Article | 8 May 1997 Paper

Progress in field-sequential color shutter technology

Gary Sharp, Scott Gilman, Kristina Johnson

Proceedings Volume 3013, (1997) https://doi.org/10.1117/12.273863

KEYWORDS: Switches, Polarizers, Liquid crystals, Polarization, Wave plates, Camera shutters, Switching, Optical filters, Modulation, LCDs

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Proceedings Article | 1 November 1996 Paper

Optoelectronic region of interest detection in monolayer cervical smear slides

John Metz, Ramkumar Narayanswamy, Rosemary Stewart, Kristina Johnson

Proceedings Volume 2848, (1996) https://doi.org/10.1117/12.256156

KEYWORDS: Optoelectronics, Sensors, Databases, Computing systems, Classification systems, Image processing, Optical correlators, Computer simulations, Control systems, Microscopes

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Proceedings Article | 1 November 1996 Paper

Packaging of ferroelectric liquid crystal-on-silicon spatial light modulators

W. Lin, Nina Morozova, TehHua Ju, Weidong Zhang, Yung-Cheng Lee, Douglas McKnight, Kristina Johnson

Proceedings Volume 2848, (1996) https://doi.org/10.1117/12.256141

KEYWORDS: Glasses, Spatial light modulators, Liquid crystal on silicon, Very large scale integration, Liquid crystals, Directed self assembly, Oxides, Ultrasonics, Liquids, Manufacturing

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Proceedings Article | 29 March 1996 Paper

New RGB tunable filter technology

Gary Sharp, Kristina Johnson

Proceedings Volume 2650, (1996) https://doi.org/10.1117/12.236993

KEYWORDS: Polarizers, Wave plates, Switches, Polarization, Tunable filters, RGB color model, Liquid crystals, Optical filters, Switching, Digital filtering

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Proceedings Article | 28 March 1995 Paper

Morphological feature detection for cervical cancer screening

Ramkumar Narayanswamy, John Sharpe, Heather Duke, Rosemary Stewart, Kristina Johnson

Proceedings Volume 2424, (1995) https://doi.org/10.1117/12.205227

KEYWORDS: Databases, Optoelectronics, Image processing, Optical correlators, Computer simulations, Microscopes, Niobium, Image filtering, Cervical cancer, CCD cameras

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Proceedings Article | 28 March 1995 Paper

Analysis of morphological structuring elements generated using adaptive resonance theory

John Sharpe, Nilgun Sungar, Ramkumar Narayanswamy, Kristina Johnson

Proceedings Volume 2424, (1995) https://doi.org/10.1117/12.205266

KEYWORDS: Fuzzy logic, Image processing, Databases, Neural networks, Binary data, Algorithm development, Eye, Physics, Evolutionary algorithms, Algorithms

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Proceedings Article | 30 June 1994 Paper

Adaptive resonance theory and self-organizing morphological kernels

John Sharpe, Nilgun Sungar, Kristina Johnson

Proceedings Volume 2300, (1994) https://doi.org/10.1117/12.179210

KEYWORDS: Fuzzy logic, Binary data, Neural networks, Computer simulations, Evolutionary algorithms, Analog electronics, Algorithms, Image processing, Algorithm development, Visualization

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Proceedings Article | 26 May 1994 Paper

Optoelectronic image processing for cervical cancer screening

Ramkumar Narayanswamy, John Sharpe, Kristina Johnson

Proceedings Volume 2132, (1994) https://doi.org/10.1117/12.176584

KEYWORDS: Image processing, Holograms, Optical filters, Optoelectronics, Holography, Optically addressed spatial light modulators, Image filtering, Optical correlators, Cervical cancer, Detection and tracking algorithms

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Proceedings Article | 9 November 1993 Paper

Optoelectronic feature extractor for classification of fingerprints

Jun Ohta, John Sharpe, Kristina Johnson

Proceedings Volume 2026, (1993) https://doi.org/10.1117/12.163589

KEYWORDS: Sensors, Fourier transforms, Optoelectronics, Detector arrays, Microlens array, Computer programming, Photodiodes, Photodetectors, Charge-coupled devices, CMOS sensors

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Proceedings Article | 25 October 1993 Paper

Programmable 128 x 128 ferroelectric liquid crystal spatial light modulator compact correlator

Steven Serati, Teresa Ewing, Roylnn Serati, Kristina Johnson, Darren Simon

Proceedings Volume 1959, (1993) https://doi.org/10.1117/12.160327

KEYWORDS: Spatial light modulators, Optical correlators, Image filtering, Cameras, Optical filters, Very large scale integration, Modulation, Optical pattern recognition, CCD cameras, Modulators

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Proceedings Article | 27 August 1993 Paper

Optical processor for zero-crossing edge detection

David Jared, Kristina Johnson

Proceedings Volume 1961, (1993) https://doi.org/10.1117/12.150950

KEYWORDS: Spatial light modulators, Optical amplifiers, Edge detection, Convolution, Visual information processing, Imaging systems, Light emitting diodes, Beam splitters, Very large scale integration, Phototransistors

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Proceedings Article | 12 July 1993 Paper

Optically addressed spatial light modulator: applications to spatial filtering

Hongchen Zhai, Pierre Chavel, Francois Chataux, Shamial Mallick, Guy Premont, Kristina Johnson

Proceedings Volume 1806, (1993) https://doi.org/10.1117/12.147851

KEYWORDS: Spatial light modulators, Spatial filters, Polarization, Image filtering, Optically addressed spatial light modulators, Optical filters, Photonic integrated circuits, Photodiodes, Optical computing, Lamps

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Proceedings Article | 16 September 1992 Paper

Impact of noise on an optoelectronic neural network

Lin Zhang, Kristina Johnson

Proceedings Volume 1709, (1992) https://doi.org/10.1117/12.140043

KEYWORDS: Neural networks, Optoelectronics, Spatial light modulators, Artificial neural networks, Neurons, Binary data, Image classification, Computer simulations, Computing systems, Classification systems

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Proceedings Article | 1 July 1992 Paper

Accessing the null space with nonlinear multilayer neural networks

Shelly Goggin, Karl Gustafson, Kristina Johnson

Proceedings Volume 1710, (1992) https://doi.org/10.1117/12.140097

KEYWORDS: Neural networks, Binary data, Artificial neural networks, Chemical elements, Matrices, Optoelectronics, Computing systems, Object recognition, Analytical research, Signal processing

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Proceedings Article | 1 August 1991 Paper

Fast optoelectronic neurocomputer for character recognition

Lin Zhang, Michael Robinson, Kristina Johnson

Proceedings Volume 1469, (1991) https://doi.org/10.1117/12.45024

KEYWORDS: Spatial light modulators, Optoelectronics, Optical character recognition, Polarization, Neural networks, Computer simulations, Detector arrays, Neurons, Computing systems, Beam splitters

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Proceedings Article | 1 July 1990 Paper

Optical neural networks using smectic liquid crystals

Michael Robinson, Kristina Johnson, Lin Zhang, B. Jack Bigner

Proceedings Volume 1215, (1990) https://doi.org/10.1117/12.18086

KEYWORDS: Spatial light modulators, Neural networks, Computer simulations, Liquid crystals, Polarization, Sensors, Optical computing, Ferroelectric LCDs, Computing systems, Detection and tracking algorithms

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SPIE Journal Paper | 1 March 1990

Dynamic holographic interconnects using static holograms

Eric Maniloff, Kristina Johnson

OE, Vol. 29, Issue 03, (March 1990) https://doi.org/10.1117/12.10.1117/12.55595

KEYWORDS: Holograms, Spatial light modulators, Holography, Diffraction, Crystals, Multiplexing, Volume holography, Optical interconnects, Computing systems, Free space optics

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