利用两种响应时间不同的光折变晶体实现仅对物体变化部分成像

来源 :光学学报 | 被引量 : 0次 | 上传用户：xfcll

【摘要】

：

用两种响应时间相差很大的光折变晶体Ce:SBN和Fe:LiNbO3作为相位共轭麦克尔逊干涉仪的两个相位共轭镜,得到同一物体的两个有时间差的相位共轭像,再对这两个像做实时“异或”运算,就能实现仅对物体随时间变化部分的成像.这种方法可以大大增加两相位共轭镜的响应时间差,具有最小可探测速度低,输出信号强、输出保持时间长的优点.文中对此作了理论分析,并提供了该系统对真实物体成像的实验结果.

【作者】

：

陈安涛范少卿丁宏玉吴存恺

【机构】

：

北京理工大学工程光学系,北京100081中国科学院安徽光学精密机械研究所激光光谱学开放实验室,合肥230031

【出处】

：

光学学报

【发表日期】

：

1993年13期

【关键词】

：

光学信息处理光折变晶体光学相位共轭相位共轭镜 optical information processing photorefractive eff

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利用两种响应时间不同的光折变晶体实现仅对物体变化部分成像

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