[图书][B] Photorefractive optics: materials, properties, and applications

S Yin, TS Francis - 2000 - books.google.com
The advances of photorefractive optics have demonstrated many useful and practical
applications, which include the development of photorefractive optic devices for computer …

Differentiation and subtraction of amplitude and phase images using a photorefractive novelty filter

M Sedlatschek, J Trumpfheller, J Hartmann, M Müller… - Applied Physics B, 1999 - Springer
In this article, we demonstrate the capability of a two-beam coupling photorefractive optical
novelty filter of detecting changes in the amplitude or phase of optical images. These …

Oscillating holograms recorded in photorefractive crystals by a frequency detuned feedback loop

AA Freschi, ACC Telles, J Frejlich… - Journal of Applied …, 2009 - pubs.aip.org
We report an optoelectronic feedback loop suitable for generating noise-free interference
patterns oscillating at arbitrary waveforms. The technique allows controlling the frequency …

Photorefractive polymer device with video-rate response time operating at low voltages

M Eralp, J Thomas, G Li, S Tay, A Schülzgen… - Optics letters, 2006 - opg.optica.org
The high-voltage bias required for video-rate compatible, efficient operation of a
photorefractive polymer composite is reduced from 6-8 to 1.3 kV. At this low voltage, the …

Improved photorefractive time response using a cylindrical lens

GJ Salamo, BD Monson, WW Clark, GL Wood… - Applied …, 1991 - opg.optica.org
Experimental observations are reported which demonstrate that the response time for beam
fanning, self-pumped phase conjugation, and double phase conjugation can be shortened …

Coherent refreshment and updating for dynamic photorefractive optical memories using phase conjugation

T Dellwig, C Denz, T Rauch, T Tschudi - Optics communications, 1995 - Elsevier
We propose and demonstrate experimentally a new, phase-locked refreshment method for
reading out dynamic holographic photorefractive memories without destruction of the stored …

Energy-transfer measurement and determination of the phase shift between the holographic grating and the fringe pattern in photorefractive materials

R Kapoor, M Moghbel, P Venkateswarlu - Optics letters, 1993 - opg.optica.org
We describe a novel accurate method to measure energy transfer between two beams
coupling in photorefractive materials. We have used this method to measure the on-line …

Optical implementation of a photorefractive joint transform correlator with wavelet filters

H Zhang, CM Cartwright, MS Ding, WA Gillespie - Optics communications, 2000 - Elsevier
We have investigated a real-time photorefractive joint transform correlator (JTC) with a bank
of wavelet filters. In the experimental set-up, a photorefractive crystal BSO has been used as …

Photorefractive pulse coupling in the frequency domain

XS Yao, J Feinberg - Optics letters, 1993 - opg.optica.org
Photorefractive pulse coupling in the frequency domain clickable element to expand a topic
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Measurement of the photorefractive grating phase shift in a polymer by an ac phase-modulation technique

M Liphardt, S Ducharme - JOSA B, 1998 - opg.optica.org
The complex coupling constant of a photorefractive polymer was measured as a function of
an applied electric field by use of a modified ac phase modulation technique. We …