Dynamic light scattering probes of structure instabilities in foamed substances

D. A. Zimnyakov; A. A. Isaeva; E. A. Isaeva; L. V. Samoilov

doi:10.1117/12.2267946

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24 March 2017 Dynamic light scattering probes of structure instabilities in foamed substances

D. A. Zimnyakov, A. A. Isaeva, E. A. Isaeva, L. V. Samoilov

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Proceedings Volume 10336, Saratov Fall Meeting 2016: Optical Technologies in Biophysics and Medicine XVIII; 103361A (2017) https://doi.org/10.1117/12.2267946
Event: Saratov Fall Meeting 2016: Fourth International Symposium on Optics and Biophotonics, 2016, Saratov, Russian Federation

Abstract

The results of experimental study of the foam structure evolution at various temperatures using correlation analysis of backscattered laser light are presented. Shaving foam was used for preparation of the phantom samples. It was found that for the later stages of structure evolution the significant spread of the local estimates of intensity correlation time is characteristic. This feature is interpreted in terms of the increasing probability for burst-like processes associated with local changes in the bubble configurations. The statistics of the local estimates of intensity correlation time is analyzed. The possible contribution of the sampling volume effect on the observed fluctuations of the correlation time is considered using the results of Monte-Carlo simulations of probed light transport in the medium.

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D. A. Zimnyakov, A. A. Isaeva, E. A. Isaeva, and L. V. Samoilov "Dynamic light scattering probes of structure instabilities in foamed substances", Proc. SPIE 10336, Saratov Fall Meeting 2016: Optical Technologies in Biophysics and Medicine XVIII, 103361A (24 March 2017); https://doi.org/10.1117/12.2267946

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