17 December 2013 Stimulated diffusion light scattering on variations of particles concentration in liquids
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Proceedings Volume 9066, Eleventh International Conference on Correlation Optics; 906610 (2013) https://doi.org/10.1117/12.2047603
Event: Eleventh International Conference on Correlation Optics, 2013, Chernivsti, Ukraine
Abstract
The effect of the form change of the intensity correlation function of light scattered back by emulsion or suspension of the particles in liquids is obtained experimentally, when the exciting light intensity increase. The change consists in the appearing in the correlation function of the cosine component with frequency equal to inverse relaxation time of particles concentration fluctuations. The appearance of such cosine component tells about the appearance of the additional spectral line, shifted with respect to exciting light by the half-width of the spectral line of spontaneous polarized Rayleigh scattering by particles. The cosine is caused by beating between exciting radiation and this spectral line. This frequency shift is of about 25-250 Hz depending on particles sizes and characteristic of liquid, in which they are weighted. Together with the scattering relative intensity increase the cosine appearance confirms the obtaining of the stimulated light scattering at variations of the particles concentrations.
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I. S. Burkhanov, L. L. Chaikov, "Stimulated diffusion light scattering on variations of particles concentration in liquids", Proc. SPIE 9066, Eleventh International Conference on Correlation Optics, 906610 (17 December 2013); doi: 10.1117/12.2047603; https://doi.org/10.1117/12.2047603
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