Optical investigation of fast processes with new pulsed monochrome light source
Conference
·
OSTI ID:220822
- Scientific-Production Corp. Platan Fryazino, Moscow (Russian Federation)
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 coherence of a laser beam leads to appearance to speckle structure in an image obtained with the help of interferometers or schlieren devices, which can not 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 flow pattern obtained in experiments of gas-dynamics, and laser-plasma diagnostics.
- OSTI ID:
- 220822
- Report Number(s):
- CONF-950793--
- Country of Publication:
- United States
- Language:
- English
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