Photorefractive time correlation motion detection
J Khoury, V Ryan, C Woods, M Cronin-Golomb - Optics communications, 1991 - Elsevier
A photorefractive time correlation motion detector is demonstrated. This device overcomes
the material response time limitation associated with other photorefractive motion detectors …
the material response time limitation associated with other photorefractive motion detectors …
Photorefractive fixed optical correlator
Photorefractive fixed optical correlator Page 1 Appl. Phys. B 70, 379–383 (2000) / Digital
Object Identifier (DOI) 10.1007/s003409900117 Applied Physics B Lasers and Optics © …
Object Identifier (DOI) 10.1007/s003409900117 Applied Physics B Lasers and Optics © …
Three-dimensional displacement measurement using chirp modulation in a photorefractive correlator
A speckle correlation technique based on chirp modulation of the speckle interference
pattern is proposed and demonstrated for the measurement of 3-D rigid body motion. The …
pattern is proposed and demonstrated for the measurement of 3-D rigid body motion. The …
Photorefractive frequency converter and phase-sensitive detector
J Khoury, V Ryan, M Cronin-Golomb, C Woods - JOSA B, 1993 - opg.optica.org
A photorefractive frequency converter and phase-sensitive detector is proposed and
demonstrated. Dynamic photorefractive theory is used to examine device characteristics for …
demonstrated. Dynamic photorefractive theory is used to examine device characteristics for …
Photorefractive delay line for the visualization and processing of time-dependent signals
G Zhou, DZ Anderson - Optics letters, 1993 - opg.optica.org
We present an optical time-delay line based on photorefractive beam coupling in a rotating
crystal. The delay line can be tapped continuously or at selected positions. We demonstrate …
crystal. The delay line can be tapped continuously or at selected positions. We demonstrate …
Photorefractive adaptive filter structure with 40-dB interference rejection
RM Montgomery, MR Lange - Applied optics, 1991 - opg.optica.org
A new architecture for photorefractive adaptive filtering is introduced. This architecture is
based on the principle of time-integrating correlator with a photorefractive material as the …
based on the principle of time-integrating correlator with a photorefractive material as the …
Time-integrating interferometry using photorefractive fanout
We have experimentally demonstrated a single-beam interferometer that effectively
subtracts an exponentially weighted history of the input from the current value, thus …
subtracts an exponentially weighted history of the input from the current value, thus …
Fundamental limit of the speed of photorefractive effect and its impact on device applications and material research: comment
AM Glass, MB Klein, GC Valley - Applied Optics, 1987 - opg.optica.org
Abstract In a recent Letter,[1] Yeh presents a derivation of the response time of a
photorefractive material and asserts that this response time is a fundamental limiting value …
photorefractive material and asserts that this response time is a fundamental limiting value …
Real-time photorefractive recording and optical processing for speckle velocimetry
SH Collicott, L Hesselink - Optics letters, 1988 - opg.optica.org
A photorefractive crystal (Bi_12GeO_20) is used to record double-exposure speckle patterns
produced by Q-switched laser pulses in real-time speckle metrology and velocimetry …
produced by Q-switched laser pulses in real-time speckle metrology and velocimetry …
Amplitude and phase measurement technique for photorefractive gratings
RM Montgomery, MR Lange - Journal of applied physics, 1990 - pubs.aip.org
A new approach for signal processing and parameter measurement is reported. This new
concept uses Bragg cells and photorefractive materials in a time‐integrating structure to …
concept uses Bragg cells and photorefractive materials in a time‐integrating structure to …