Raman scattering on particles: the backscattering efficiency and phase function measurement technique

Sergei N. Volkov; Ignatii V. Samokhvalov; Duk-Hyeon Kim

doi:10.1117/12.2540706

18 December 2019 Raman scattering on particles: the backscattering efficiency and phase function measurement technique

Sergei N. Volkov, Ignatii V. Samokhvalov, Duk-Hyeon Kim

Proceedings Volume 11208, 25th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics; 112084B (2019) https://doi.org/10.1117/12.2540706
Event: XXV International Symposium, Atmospheric and Ocean Optics, Atmospheric Physics, 2019, Novosibirsk, Russian Federation

Abstract

For microparticles, the intensity of spontaneous scattering is directly proportional to the volume. However, model calculations show that when the particle dimension parameter increases in the region 0.5<x<10, the backscattering efficiency increases sharply up to a value of 2.7 and then decreases gradually (excluding resonance effects) down to a value of 1.8 in the region10<x<500. This fact should be taken into account when determining the water content in clouds with a Raman lidar. A technique for measuring the phase function of Raman scattering on single water particles in the laboratory conditions is proposed. An experimental setup for measuring the phase function of Raman scattering on spherical liquid droplets is created and tested.

Citation Download Citation

Sergei N. Volkov, Ignatii V. Samokhvalov, and Duk-Hyeon Kim "Raman scattering on particles: the backscattering efficiency and phase function measurement technique", Proc. SPIE 11208, 25th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 112084B (18 December 2019); https://doi.org/10.1117/12.2540706

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