Fast response self-pumped phase conjugator based on a +c-face incident configuration in a pentagon-shaped BaTiO3 crystal期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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Fast response self-pumped phase conjugator based on a +c-face incident configuration in a pentagon-shaped BaTiO3 crystal

Authors:	Tang LC Chang CC Chen TC Yau HF Ye PX

Institution:	(1) Department of Applied Physics, Chung Cheng Institute of Technology, National Defense University, Tahsi, Taoyuan, 33509, Taiwan, ROC;(2) Institute of Optical Sciences, National Central University, Chungli, Taoyuan, 32054, Taiwan, ROC;(3) Institute of Physics, Chinese Academy of Sciences, P.O. Box 603, Beijing, 100080, China

Abstract:	We propose a novel geometry for a self-pumped phase conjugator that uses a +c-face incident configuration in a photorefractive pentagon-shaped 0°-cut BaTiO₃ crystal for obtaining fast response in phase conjugation. A steady phase-conjugate output with a fast response time 0.4 s is obtained when the incident beam has a 4 W/cm² intensity. The influences of position and angle on the temporal phase-conjugate response are also investigated. The advantage of this phase conjugator using this novel configuration is improved resolution of a phase-distorted image with a value as high as 128 lp/mm.

Keywords:	BaTiO₃ photorefractive self-pumped phase conjugator
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