Dependence of fringe contrast on phase statistics in speckle correlation interferometry

T. W. Ng, F. S. Chau

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Abstract

Object deformation-related phase measurements obtained using speckle correlation interferometry are limited by low fringe contrast factor values. In this paper, the statistical property of speckle phase - related to conditions of scattering from optically rough surfaces - is outlined to elucidate this factor. A series of computations using random number generation with a Gaussian deviate is performed to verify this approach and to obtain numerical estimates of the fringe contrast factor.

Original languageEnglish
Pages (from-to)78-80
Number of pages3
JournalOptik
Volume97
Issue number2
Publication statusPublished - 1 Aug 1994
Externally publishedYes

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