Real-time coherence holography
Real-time coherence holography
复制标题
DOI：
10.1364/oe.18.013782
复制
发表时间：
2010-06-21
期刊：
影响因子：
3.8
通讯作者：
Takeda, Mitsuo
中科院分区：
文献类型：
--
作者：
Naik, Dinesh N.;Ezawa, Takahiro;Takeda, Mitsuo
提出了一种能够实时记录和再现的相干全息术，并用普通的Leith类相干全息图进行了实验验证。相干全息图用马赫-曾德尔干涉仪实时光学产生，用Sagnac径向剪切干涉仪再现。利用这种方法，可以产生具有所需空间相干函数的光场分布，并将相干函数实时可视化为干涉条纹图案中的对比度和位相变化。用条纹分析的傅里叶变换方法对复相干函数的重建像进行了量化。(C)2010年美国光学学会
Coherence holography capable of real-time recording and reconstruction is proposed and experimentally demonstrated with a generic Leith-type coherence hologram. The coherence hologram is optically generated in real-time using a Mach-Zehnder interferometer and reconstructed using a Sagnac radial shearing interferometer. With this method one can create an optical field distribution with a desired spatial coherence function, and visualize the coherence function in real-time as the contrast and phase variations in an interference fringe pattern. The reconstructed image of the complex coherence function has been quantified with the Fourier transform method of fringe-pattern analysis. (C) 2010 Optical Society of America