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Proceedings Paper

Light penetration depth of a turbid media estimated by cross-correlation of speckle patterns
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Paper Abstract

We present novel experimental method for estimation of the light penetration depth (LPD) in turbid media based on the analysis of the cross-correlation function of speckle patterns. Under certain illumination conditions, the amplitude of the correlation function is strongly dependent on the penetration depth. Presented theoretical model based on the Bragg diffraction from the thick holograms allows LPD estimation if only one parameter of the material, namely refractive index, of the material is known. However, qualitative LPD comparison is possible without knowledge of the material properties. Feasibility of the method was checked experimentally. Experimental results were additionally verified by alternative experimental method.

Paper Details

Date Published: 11 September 2012
PDF: 6 pages
Proc. SPIE 8413, Speckle 2012: V International Conference on Speckle Metrology, 84130B (11 September 2012); doi: 10.1117/12.978218
Show Author Affiliations
Igor S. Sidorov, Univ. of Eastern Finland (Finland)
Serguei V. Miridonov, Ctr. de Investigación Científica y Educación Superior de Ensenada (Mexico)
Ervin Nippolainen, Univ. of Eastern Finland (Finland)
Alexei A. Kamshilin, Univ. of Eastern Finland (Finland)

Published in SPIE Proceedings Vol. 8413:
Speckle 2012: V International Conference on Speckle Metrology
Ángel Fernandez Doval; Cristina Trillo, Editor(s)

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