Digital display of the temporal evolution of speckle patterns

Rodrigo H. Henao; Hector Jorge Rabal; Alberto A. Tagliaferri; Roberto Daniel Torroba

doi:10.1117/1.600939

1 January 1996 Digital display of the temporal evolution of speckle patterns

Rodrigo H. Henao; Hector Jorge Rabal; Alberto A. Tagliaferri; Roberto Daniel Torroba;

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Optical Engineering, 35(1), (1996). doi:10.1117/1.600939

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.

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Rodrigo H. Henao, Hector Jorge Rabal, Alberto A. Tagliaferri, Roberto Daniel Torroba, "Digital display of the temporal evolution of speckle patterns," Optical Engineering 35(1), (1 January 1996). https://doi.org/10.1117/1.600939

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