10 March 2000 Selective erasure of holographic index gratings in photorefractive crystals
Author Affiliations +
Proceedings Volume 3951, Diffractive/Holographic Technologies and Spatial Light Modulators VII; (2000) https://doi.org/10.1117/12.379371
Event: Symposium on Integrated Optoelectronics, 2000, San Jose, CA, United States
Abstract
We proposed a novel method to realize selective erasure of holographic index gratings in the photorefractive crystals. This scheme is based on the self-enhancement of the index gratings in the photorefractive materials. It is a save-erase- restore procedure, namely, save wanted information-erase unwanted information-restore wanted information. Simple experimental results are also presented. The requirement in this scheme is that the material has the effect of self- enhancement, i.e. the index grating is transmission grating, the product of the coupling constant and the thickness is above the threshold of the self-enhancement. But it eliminates the critical requirement of preventing vibration in the previous (pi) -phase-shift scheme.
© (2000) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
JianHua Zhao, Xiaonong Shen, Huanchu Chen, "Selective erasure of holographic index gratings in photorefractive crystals", Proc. SPIE 3951, Diffractive/Holographic Technologies and Spatial Light Modulators VII, (10 March 2000); doi: 10.1117/12.379371; https://doi.org/10.1117/12.379371
PROCEEDINGS
6 PAGES


SHARE
Back to Top