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Proceedings Paper

An Adjustable Sensitivity Speckle Shearing Interferometric Technique Using A Single Grating
Author(s): Liu Jiading; Yue Chenglin; Duanmu Gang
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Paper Abstract

The paper proposes a new peckle shearing interferometry using a rectangular grating as a shearing component, it has an advantage of an adjustable sensitivity after measurement, and remains the advantage of shearing interferometry using a sinusoidal grating. The rectangular grating diffracts the light in many order, the light interference among these orders produce the differential shearing patterns. Because the shearing amount of this method is changed with the diffraction order and diffraction angle, the sensitivity of the interference fringe pattern can be adjustable. The paper gives the practical parameters. To verify the method, we take the photos of loading cantiliver beam.

Paper Details

Date Published: 7 June 1989
PDF: 6 pages
Proc. SPIE 1032, 18th Intl Congress on High Speed Photography and Photonics, (7 June 1989); doi: 10.1117/12.969138
Show Author Affiliations
Liu Jiading, Academia Sinica (China)
Yue Chenglin, Academia Sinica (China)
Duanmu Gang, Academia Sinica (China)


Published in SPIE Proceedings Vol. 1032:
18th Intl Congress on High Speed Photography and Photonics
DaHeng Wang, Editor(s)

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