Structure diagnostics of dispersive two-phase systems using speckle correlation technique

E. A. Isaeva; A. A. Isaeva; D. A. Zimnyakov

doi:10.1117/12.2523142

3 June 2019 Structure diagnostics of dispersive two-phase systems using speckle correlation technique

E. A. Isaeva, A. A. Isaeva, D. A. Zimnyakov

Proceedings Volume 11066, Saratov Fall Meeting 2018: Laser Physics, Photonic Technologies, and Molecular Modeling; 110660Z (2019) https://doi.org/10.1117/12.2523142
Event: International Symposium on Optics and Biophotonics VI: Saratov Fall Meeting 2018, 2018, Saratov, Russian Federation

Abstract

This work describes the results of analysis of the developing porous systems and foamed liquids using full-filed speckle correlometry. The relationship between the dynamics of structure formation of the model porous matrices and the correlation time of multiple scattered laser light is studied. Partially isolated foam samples were used as model scattering objects. The observed increase in the correlation time of speckle intensity fluctuations is caused by a variety of physical processes occurring in the evolving foam (in particular, the gas diffusion between neighboring pores). The obtained results can serve as the physical basis for advanced probing techniques in various areas of modern applied science related to synthesis of highly porous functional materials.

Citation Download Citation

E. A. Isaeva, A. A. Isaeva, and D. A. Zimnyakov "Structure diagnostics of dispersive two-phase systems using speckle correlation technique", Proc. SPIE 11066, Saratov Fall Meeting 2018: Laser Physics, Photonic Technologies, and Molecular Modeling, 110660Z (3 June 2019); https://doi.org/10.1117/12.2523142

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