J Khoury, C Woods, V Ryan… - Journal of the Optical …, 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 …
R Hofmeister, A Yariv, S Yagi - JOSA A, 1994 - opg.optica.org
We report a theoretical investigation of the frequency response of optical interference filters written in photorefractive materials. Counterpropagating coherent beams interact in the …
We observe the strong photorefractive (PR)-like effect in silica micro-fibers, which is different from the previously reported nonlinear behaviors in optical fiber devices. The micro-fiber is …
Calibrated optical Bragg‐scattering measurements of the fundamental steady‐state space‐ charge‐field amplitude, and of two higher spatial harmonics, in photorefractive p‐type …
C Uhrich, L Hesselink - Applied optics, 1988 - opg.optica.org
We present real-time optical preprocessor intended to enhance small defects in a smooth surface. The heart of the system is a photorefractive Bi_12SiO_20 phase-conjugate mirror …
I de Oliveira, J Frejlich - Physical Review A, 2001 - APS
We demonstrate that the negative amplitude gain in a photorefractive two-wave-mixing experiment under applied electric field measurably reduces the characteristic instability of …
D Fluck, S Brülisauer, P Günter - Optics communications, 1995 - Elsevier
We report on numerical simulations of two-wave mixing of Gaussian beams in photorefractive materials. By using a model that takes the lateral intensity distribution of the …
C Uhrich, L Hesselink - Applied optics, 1994 - opg.optica.org
We have built an adaptive system capable of detecting submicrometer defects in periodic structures by using real-time holography in photorefractive crystals. We summarize the …
M Jeganathan, L Hesselink - JOSA B, 1994 - opg.optica.org
We investigate diffraction from a thermally fixed grating in a photorefractive medium with an ion concentration that is large compared with the acceptor density. A numerical solution to …