光学学报, 1990, 10 (10): 938, 网络出版: 2007-11-12
光源编码的白光散斑剪切干涉计量术
White-light speckle shearing interferometry with the source encoded
白光散斑 剪切干涉 光源编码 部分相干理论 white-light speckle shearing interferometry partially coherent theory source encoding
摘要
本文提出了一种用非相干光源照明进行剪切干涉计量的方法—光源编码的白光散斑剪切干涉计量术.它采用光栅对光源进行编码以提高空间相干性,使物体的两个剪切像的波面部分相干叠加,以实现剪切干涉.
Abstract
In this paper, white-light speckle shearing interferometry with the source encoded——a method for speckle shearing interferometry under the illumination of incoherent source is proposed. While the source is encoded with a grating, the coherence of two points on the object is enhanced and the wavefronts of the sheared two images become mutually coherent. Thus the white-light speckle shearography is performed.
程传福, 姜锦虎, 沈永昭, 陈炳泉. 光源编码的白光散斑剪切干涉计量术[J]. 光学学报, 1990, 10(10): 938. 程传福, 姜锦虎, 沈永昭, 陈炳泉. White-light speckle shearing interferometry with the source encoded[J]. Acta Optica Sinica, 1990, 10(10): 938.
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