Dr. Richard J. Tansey Profile

Dr. Richard J. Tansey

Senior Scientist/Fellow

SPIE Involvement:

Author

Proceedings Article | 4 May 2010 Paper

"On chip" Fourier processing to enhance SNR in the presence of background noise

Richard Tansey

Proceedings Volume 7660, 76603S (2010) https://doi.org/10.1117/12.849600

KEYWORDS: Modulation, Signal detection, Mirrors, Sensors, Signal processing, Signal to noise ratio, Algorithm development, Interference (communication), Light sources, Fiber optic illuminators

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Proceedings Article | 12 February 2007 Paper

The black fringe wavefront sensor: white light real time analog phase control

Richard Tansey, Avinash Honkan, Henry Chan

Proceedings Volume 6457, 64570R (2007) https://doi.org/10.1117/12.701472

KEYWORDS: Phase measurement, Microelectromechanical systems, Mirrors, Analog electronics, Wavefront sensors, Interferometers, Sensors, Chemical elements, Adaptive optics, Iron

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Proceedings Article | 1 February 2002 Paper

Practical concerns for phase diversity implementation in wavefront sensing and image recovery

Jean Dolne, Richard Tansey, K. Black, J. Deville, Philip Cunningham, Kenneth Widen, Jennifer Hill, Paul Idell

Proceedings Volume 4493, (2002) https://doi.org/10.1117/12.454701

KEYWORDS: Image restoration, Point spread functions, Image processing, Interferometers, Cameras, Wavefronts, Beam splitters, Zernike polynomials, Imaging systems, Wavefront sensors

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Proceedings Article | 18 November 1998 Paper

Description and experimental results of a 58-lb portable LEO satellite tracker

Richard Tansey, Blair Campbell, Andrea Koumvakalis, R. Dantowitz, M. Kozubal

Proceedings Volume 3434, (1998) https://doi.org/10.1117/12.331224

KEYWORDS: Satellites, Telescopes, Video, Charge-coupled devices, Astronomy, Space telescopes, Satellite communications, Automatic tracking, Software development, Control systems

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Proceedings Article | 2 October 1998 Paper

Use of an acousto-optic modulator for achieving 1.6-GHz (150- to 300-MHz bandwidth) cw modulation of a multiwatt cw argon laser operating at 488 nm and 514.5 nm

Richard Tansey, Blair Campbell, Andrea Koumvakalis, S. Muenter, Rashmi Shah

Proceedings Volume 3464, (1998) https://doi.org/10.1117/12.323126

KEYWORDS: Bragg cells, Modulation, Beam splitters, Crystals, Sensors, Absorption, Argon ion lasers, Diffraction, Continuous wave operation, Transducers

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Proceedings Article | 13 August 1993 Paper

Strehl ratio meter

Kenneth Widen, Richard Tansey

Proceedings Volume 1868, (1993) https://doi.org/10.1117/12.150631

KEYWORDS: Scanners, Sensors, Wavefronts, Infrared cameras, Lithium, Collimation, Optical testing, Integrating spheres, Data acquisition, Optical amplifiers

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Proceedings Article | 1 June 1990 Paper

Astigmatism effects in a CO2 unstable ring resonator

Philip Slaymaker, Richard Tansey

Proceedings Volume 1224, (1990) https://doi.org/10.1117/12.18431

KEYWORDS: Mirrors, Resonators, Monochromatic aberrations, Beam quality measurement, Optical resonators, Copper, Off axis mirrors, Optical testing, Quality measurement, Carbon dioxide

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