Wavefront reversal technique for self-referencing collimation testing.
作者信息
Hii King Ung, Kwek Kuan Hiang
机构信息
Department of Physics, University of Malaya, 50603 Kuala Lumpur, Malaysia.
出版信息
Appl Opt. 2010 Feb 1;49(4):668-72. doi: 10.1364/AO.49.000668.
PMID:20119017
Abstract
We present a wavefront reversal technique to produce a dual-field fringe pattern for self-referencing collimation testing in wedge-plate lateral-shear interferometry. The method requires only a suitably placed cubic beam splitter to produce two replicas of the fringe field formed by the wedge-plate lateral-shear interferometer. One of the replicas has a fringe pattern that is the reverse of the other. With these two fringe fields, the collimation testing has a built-in reference, and the detection sensitivity is twice that of a single-wedge-plate technique.
摘要
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