Heterodyne diagnostics by Doppler signal of backscattering of near-surface flows induced by intense laser radiation

E. M. Chastookhin; V. D. Dubrov; Vyacheslav M. Gordienko; Alexei Konovalov; Nikolay N. Kurochkin; Vladislav Ya. Panchenko; Iouri Yuri Poutivski; V. I. Savin

doi:10.1117/12.234239

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1 March 1996 Heterodyne diagnostics by Doppler signal of backscattering of near-surface flows induced by intense laser radiation

E. M. Chastookhin, V. D. Dubrov, Vyacheslav M. Gordienko, Alexei Konovalov, Nikolay N. Kurochkin, Vladislav Ya. Panchenko, Iouri Yuri Poutivski, V. I. Savin

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Proceedings Volume 2713, Fifth International Conference on Industrial Lasers and Laser Applications '95; (1996) https://doi.org/10.1117/12.234239
Event: Fifth International Conference on Industrial Laser and Laser Applications '95, 1995, Shatura, Moscow, Russian Federation

Abstract

A procedure of operational inspection of laser technological processes has been suggested that is based on measuring spectral properties of Doppler signal of backscattering from the interaction region by optical heterodyne technique. The technique enables us to obtain the qualitative and quantitative information on hydrodynamic flows in reactor. The measurements have been performed with about 1 kW/cm² beam intensity of continuous-wave carbon- dioxide laser at the surface of a number of condensed substances by monostatic scheme of interaction.

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E. M. Chastookhin, V. D. Dubrov, Vyacheslav M. Gordienko, Alexei Konovalov, Nikolay N. Kurochkin, Vladislav Ya. Panchenko, Iouri Yuri Poutivski, and V. I. Savin "Heterodyne diagnostics by Doppler signal of backscattering of near-surface flows induced by intense laser radiation", Proc. SPIE 2713, Fifth International Conference on Industrial Lasers and Laser Applications '95, (1 March 1996); https://doi.org/10.1117/12.234239

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