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Proceedings Paper

Speckle contrast measurements with changeable coherence length: the method of scattering media probing
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Paper Abstract

We tried to probe photon path statistics by analyzing the change of speckle contrast with different coherence length of source. The speckle contrast is strong function of both photon path statistics inside scattering media and coherence function of a source. By introducing explicit formula for speckle contrast, we can relate photon path statistics with measured speckle contrast and coherence of source in reverse manner. To realize this idea, we formulated this relationship and performed several MC simulations and basic experiments for various scattering media. Although the present result is very rough, it shows some possibility of using this method to find photon propagation statistics inside turbid media such as tissues and thin polymer film.

Paper Details

Date Published: 31 May 2002
PDF: 8 pages
Proc. SPIE 4705, Saratov Fall Meeting 2001: Coherent Optics of Ordered and Random Media II, (31 May 2002); doi: 10.1117/12.469002
Show Author Affiliations
Jung-Taek Oh, Korea Advanced Institute of Science and Technology (South Korea)
Dmitry A. Zimnyakov, Saratov State Univ. (Russia)
Garif G. Akchurin, Saratov State Univ. (Russia)

Published in SPIE Proceedings Vol. 4705:
Saratov Fall Meeting 2001: Coherent Optics of Ordered and Random Media II
Dmitry A. Zimnyakov, Editor(s)

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