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Proceedings Paper

Temporal Versus Spatial Carrier Techniques For Heterodyne Interferometery
Author(s): Mitsuo Takeda
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Paper Abstract

Two different types of interferograms and their analysis techniques are being used in precision interferometry. The heterodyne interferometry proposed by Massie et al.1) uses a time-varying interferogram i(x,y;t) with a temporal carrier frequency fa generated by an acousto-optic modulator; g(x,y;t) = a(x,y) + b(x,y)cos(2,rfet +0(x,y)]. (1)

Paper Details

Date Published: 1 January 1987
PDF: 2 pages
Proc. SPIE 0813, Optics and the Information Age, (1 January 1987); doi: 10.1117/12.967284
Show Author Affiliations
Mitsuo Takeda, University of Electrocommunications (Japan)

Published in SPIE Proceedings Vol. 0813:
Optics and the Information Age

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