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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 40, Iss. 11 — Apr. 10, 2001
  • pp: 1814–1818

Speckle velocimetry by means of holographic time-integrative correlation

J. Khoury, Peter D. Gianino, and Charles L. Woods  »View Author Affiliations


Applied Optics, Vol. 40, Issue 11, pp. 1814-1818 (2001)
http://dx.doi.org/10.1364/AO.40.001814


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Abstract

We develop the theory of the speckle velocimeter that is based on use of a photorefractive real-time hologram in four-wave mixing as a time-integrative correlator. The theory of the speckle velocimeter has been developed for the time correlation between the far-field spectrum of light scattered from the diffuser and the reference wave that is Doppler shifted. Our theoretical derivation shows that it is possible to extract the velocity with minor processing of the output correlation.

© 2001 Optical Society of America

OCIS Codes
(030.6140) Coherence and statistical optics : Speckle
(070.4550) Fourier optics and signal processing : Correlators
(120.7250) Instrumentation, measurement, and metrology : Velocimetry
(190.5330) Nonlinear optics : Photorefractive optics

History
Original Manuscript: April 26, 2000
Revised Manuscript: October 12, 2000
Published: April 10, 2001

Citation
J. Khoury, Peter D. Gianino, and Charles L. Woods, "Speckle velocimetry by means of holographic time-integrative correlation," Appl. Opt. 40, 1814-1818 (2001)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-40-11-1814

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