26 April 2018 Diffusing light probing of aged wet foams
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Abstract
Features of diffusing light probes of aged liquid foams are discussed. These probes were carried out using broadband and laser radiation with the wavelength of 532 nm. Experimental data were obtained for aged samples of Gillette shaving cream as a model foamed substance. The coefficients of diffusion and collimated transmittance were applied for characterization of the structural changes in the aged wet foams. Also, the changes in the liquid fraction due to gravitational drainage were monitored using volumometric measurements in the course of the foam aging. Obtained empirical data on the diffuse and collimated transmittance were used as the reference values for correction of the spectral measurements in the visible range with a broadband source of probe light. The problem of correction of the collimated transmittance partially corrupted by the diffusing component of multiply scattered light is discussed.
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I. O. Slavnetskov, I. O. Slavnetskov, A. V. Kalacheva, A. V. Kalacheva, S. A. Yuvchenko, S. A. Yuvchenko, N. S. Markova, N. S. Markova, D. A. Zimnyakov, D. A. Zimnyakov, } "Diffusing light probing of aged wet foams", Proc. SPIE 10717, Saratov Fall Meeting 2017: Laser Physics and Photonics XVIII; and Computational Biophysics and Analysis of Biomedical Data IV, 107171F (26 April 2018); doi: 10.1117/12.2314725; https://doi.org/10.1117/12.2314725
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