光学
计算机科学
相位恢复
物理
相(物质)
材料科学
作者
Lei Xu,Yong Liu,Dong Liu,Ying He,Hongzhen Jiang,Huxiang Zhang,Huaijin Ren,Liqun Chai,Qinghua Zhu,Wanguo Zheng,Qiaofeng Tan
出处
期刊:Journal of Optics
[IOP Publishing]
日期:2021-05-10
卷期号:23 (6): 065601-065601
被引量:2
标识
DOI:10.1088/2040-8986/abf6bb
摘要
Abstract A new phase retrieval method is investigated to reconstruct wavefronts of optical parallel plates with the use of a group of diffraction patterns. More specifically, the improved phase retrieval algorithm is realized by converting the measuring plane wave into a spherical wave and by using single or double discrete Fourier transforms to calculate both far- and near-field diffraction propagations, and the accuracy is improved by adjusting the exposure time of the charge-coupled device according to the distance between the focal plane and diffraction plane. Both the theoretical and experimental results are consistent with the results obtained using conventional wavelength-modulated phase-shifting interferometry. The new method opens new doors for realizing wavefront measurement of optical parallel plates with high accuracy, especially for large-aperture parallel plates in inertial confinement fusion laser systems.
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