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Proceedings Paper

Optical investigation of fast processes with new pulsed monochrome light source
Author(s): Michael V. Guschin; Igor M. Dementjev; Nikolai P. Mende; Igor M. Olikhov; Alexander N. Gulchenko; Vladimir N. Ulasjuk
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Paper Abstract

The emergence of lasers opened a new epoch in optical diagnostics of fast processes in many fields, and in gas dynamics in particular (holography, holographic and speckle interferometry, etc.). However, as to classical optical methods traditionally applied in gas dynamics, these new light sources, side by side with numerous advantages, have a certain demerit. High spatial coherency of a laser beam leads to the appearance of speckle structure in an image obtained with the help of interferometers or schlieren devices, which cannot be eliminated even with scatterer application. A new semiconductor laser with electron-beam pumping is free from such a demerit. Its quality and capabilities are illustrated by a flow pattern obtained at a ballistic range.

Paper Details

Date Published: 1 January 1992
PDF: 6 pages
Proc. SPIE 1539, Ultrahigh- and High-Speed Photography, Videography, and Photonics '91, (1 January 1992); doi: 10.1117/12.50548
Show Author Affiliations
Michael V. Guschin, Scientific-Production Corp. "Platan" (Russia)
Igor M. Dementjev, Scientific-Production Corp. "Platan" (Russia)
Nikolai P. Mende, Scientific-Production Corp. "Platan" (Russia)
Igor M. Olikhov, Scientific-Production Corp. "Platan" (Russia)
Alexander N. Gulchenko, Scientific-Production Corp. "Platan" (Russia)
Vladimir N. Ulasjuk, Scientific-Production Corp. "Platan" (Russia)

Published in SPIE Proceedings Vol. 1539:
Ultrahigh- and High-Speed Photography, Videography, and Photonics '91
Paul A. Jaanimagi, Editor(s)

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