This article is cited in 5 papers

Laser applications and other topics in quantum electronics

Laser Doppler visualisation of the fields of three-dimensional velocity vectors with the help of a minimal number of CCD cameras

Yu. N. Dubnishchev

Institute of Thermophysics, Siberian Branch of the Russian Academy of Science

Abstract: We discuss the possibility of laser Doppler visualisation and measurement of the field of three-dimensional velocity vectors by suppressing the multiparticle scattering influence on the measurement results, when using one CCD camera. The coordinate measuring basis is formed due to switching of the directions and the frequency of spatially combined laser sheets, the frequency being synchronised with the CCD-camera operation. The field of the velocity vectors without the contribution from the multiparticle scattering is produced from the linear combinations of normalised laser sheet images detected with a CCD camera in a frequency-demodulated scattered light. The method can find applications not only in laser diagnostics of gas and condensed media but also in the Doppler spectroscopy of light fields scattered by multiparticle dynamic structures.

PACS: 42.62.Fi, 87.63.dk

Received: 15.02.2010
Revised: 06.04.2010

 English version: Quantum Electronics, 2010, 40:6, 551–555

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