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.
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.
出处
《光学学报》
EI
CAS
CSCD
北大核心
1990年第10期938-944,共7页
Acta Optica Sinica
基金
国家自然科学基金赞助的项目
关键词
光源编码
白光
散斑
剪切干涉
计量
white-light speckle
shearing interferometry
partially coherent theory
source encoding.
