Folding mirror schlieren diffraction interferometer

Kumar, Raj and Chhachhia, D.P. and Aggarwal, A.K. (2006) Folding mirror schlieren diffraction interferometer. Applied Optics, 45 (26). pp. 6780-6711. ISSN 0003-6935

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Official URL: http://www.opticsinfobase.org/ao/abstract.cfm?id=9...

Abstract

We demonstrate the use of a mirror as a viewing diaphragm to generate a built-in diffracted reference beam in schlieren diffraction interferometry (SDI). The use of a mirror edge as a diffracting element instead of a conventional knife edge considerably enhances the contrast of the schlieren pattern, and it is shown to be equal to that of a phase knife edge. This increase in contrast is due to the fact that the otherwise unutilized diffracted beam in SDI is recombined in the described folding mirror geometry

Item Type: Article
Uncontrolled Keywords: Diffraction; Interferometry; Optical testing
Subjects: CSIO > Optics
Depositing User: Ms. J Shrivastav
Date Deposited: 29 Mar 2012 23:19
Last Modified: 11 Apr 2012 11:13
URI: http://csioir.csio.res.in/id/eprint/42

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