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Proceedings Paper

Numerical blur-up criterion in speckle patterns
Author(s): Roman Castaneda; Francisco F. Medina-Estrada; B. Yepes
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Paper Abstract

It is widely known that both the speckle pattern generated by the axial movement of a rigid diffuser surface, as well as the speckle pattern registered with low resolution, present blur-up. In the first case a blur-up criterion was proposed and applied to the study of vibrations. The statistical and optical properties of dynamic diffusers are also well modeled and well known. This paper proposes a numerical criterion to determine the blur-up of the speckle pattern resulting from superposition patterns generated by dynamic diffusers. Its application is illustrated in the analysis of the Brownian motion of colloidal particles.

Paper Details

Date Published: 5 February 1996
PDF: 4 pages
Proc. SPIE 2730, Second Iberoamerican Meeting on Optics, (5 February 1996); doi: 10.1117/12.231086
Show Author Affiliations
Roman Castaneda, Univ. Nacional de Colombia Sede Medellin (Colombia)
Francisco F. Medina-Estrada, Univ. de Antioquia (Colombia)
B. Yepes, Univ. de Antioquia (Colombia)


Published in SPIE Proceedings Vol. 2730:
Second Iberoamerican Meeting on Optics
Daniel Malacara-Hernandez; Sofia E. Acosta-Ortiz; Ramon Rodriguez-Vera; Zacarias Malacara; Arquimedes A. Morales, Editor(s)

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