Phase shifting grating-slit test with a cross slit

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/50998

Title:	Phase shifting grating-slit test with a cross slit
Authors:	Liang,CW;Ou,CF;Sasian,J
Contributors:	光電科學與工程學系
Date:	2010
Issue Date:	2012-03-27 18:15:08 (UTC+8)
Publisher:	國立中央大學
Abstract:	A general graphical convolution method for fringe analysis of testing methods that use a spatially incoherent light source is presented. Results are shown for the grating-slit test using optical narrow and cross slits. The convolution method shows that phase shifting grating-slit test can be done with the cross slit at the expense of a reduced fringe contrast ratio. A phase shifting measurement with a cross-slit modulator yields high measurement precision and validates our fringe contrast theory. (C) 2010 Optical Society of America
Relation:	OPTICS LETTERS
Appears in Collections:	[Department of Optics and Photonics] journal & Dissertation

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