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Optical Engineering

Digital display of the temporal evolution of speckle patterns
Author(s): Rodrigo H. Henao; Hector Jorge Rabal; Alberto A. Tagliaferri; Roberto Daniel Torroba
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Paper Abstract

An interesting way to display the temporal evolution of a speckle pattern produced by a slowly changing perturbation is presented. It is based on digital speckle pattern interferometry (DSPI) concepts applied to 1-D slices of each frame of the time-evolving perturbation. The time history of a column of an image is depicted as a function of time. Correlation fringes are obtained by subtracting an unperturbed state from consecutive or alternate columns. Applications are suggested.

Paper Details

Date Published: 1 January 1996
PDF: 7 pages
Opt. Eng. 35(1) doi: 10.1117/1.600939
Published in: Optical Engineering Volume 35, Issue 1
Show Author Affiliations
Rodrigo H. Henao, Centro de Investigaciones Opticas (CIOp) (Colombia)
Hector Jorge Rabal, Ctr. de Investigaciones Opticas (Argentina)
Alberto A. Tagliaferri, Univ. Federal Fluminense (Brazil)
Roberto Daniel Torroba, Ctr. de Investigationes Opticas (Argentina)

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