OCT probing of highly porous polylactide matrices using estimations of the integrated scan-depth-dependent diffuse reflectivity

D. A. Zimnyakov; O. V. Ushakova; E. A. Isaeva; A. A. Isaeva; M. V. Alonova

doi:10.1117/12.2564611

9 April 2020 OCT probing of highly porous polylactide matrices using estimations of the integrated scan-depth-dependent diffuse reflectivity

D. A. Zimnyakov, O. V. Ushakova, E. A. Isaeva, A. A. Isaeva, M. V. Alonova

Author Affiliations +

Proceedings Volume 11458, Saratov Fall Meeting 2019: Laser Physics, Photonic Technologies, and Molecular Modeling; 114580M (2020) https://doi.org/10.1117/12.2564611
Event: Saratov Fall Meeting 2019: VII International Symposium on Optics and Biophotonics, 2019, Saratov, Russian Federation

Abstract

A new approach to the interpretation of OCT probes of coarse-grained random media is considered. In the framework of the approach, the integrated scan-depth-dependent diffuse reflectivity of a probed sample is estimated using a set of OCT A-scans. A relationship between the integrated reflectivity and a transport mean free path of light propagation in the probed sample is established using Monte-Carlo simulations. The considered technique was applied for characterization of the structure of highly porous polymer (polylactide) matrices synthesized using a supercritical fluidic (SCF) foaming of a pre-plasticized raw polymer. The results of experimental verification of the considered technique are compared with similar data obtained in the framework of other approaches to OCT data interpretation.

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D. A. Zimnyakov, O. V. Ushakova, E. A. Isaeva, A. A. Isaeva, and M. V. Alonova "OCT probing of highly porous polylactide matrices using estimations of the integrated scan-depth-dependent diffuse reflectivity", Proc. SPIE 11458, Saratov Fall Meeting 2019: Laser Physics, Photonic Technologies, and Molecular Modeling, 114580M (9 April 2020); https://doi.org/10.1117/12.2564611

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