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Optical Engineering

Double-pulse subtraction TV holography
Author(s): Rudie Spooren
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Paper Abstract

The fringe visibility in pulsed subtraction and addition TV holography is described and compared. Correlation fringe patterns, obtained by conventional double-pulse addition TV holography, are characterized by their relatively poor quality. The fringe visibility is significantly improved by applying subtraction in combination with the double-pulse technique. This is achieved by using a standard interline transfer CCD camera. Double-pulse subtraction TV holography is especially useful for subfringe measurements, and vibration amplitudes of less than λ/50 have been detected on raw double-pulse subtraction interferograms.

Paper Details

Date Published: 1 May 1992
PDF: 8 pages
Opt. Eng. 31(5) doi: 10.1117/12.56149
Published in: Optical Engineering Volume 31, Issue 5
Show Author Affiliations
Rudie Spooren, Norwegian Institute of Technology (Norway)

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