Laser diagnostics of molecular states in nonequilibrium gas flows View Full Text


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Article Info

DATE

1985-07

AUTHORS

O. V. Achasov, N. A. Fomin, S. A. Labuda, D. S. Ragozin, R. I. Soloukhin

ABSTRACT

Laser diagnostics techniques are developed, and some typical results are presented on the vibrational CO2 molecule level population measurements under highly nonequilibrium conditions for two types of flows: (i) in a conventional gasdynamic lasers and (ii) in a flow mixing gasdynamic laser. The measuring procedure is based on recording spectral gain coefficient distributions at several resolved rotational transitions of different vibrational bands. The laser optical system with spatial selection of single lines is described. The system allows fast (about 10−5−10−4 s) line tuning, thus providing a variable and arbitrary choice of the selected line sequences. The optimum choice of the laser generation spectrum is discussed, and the sources of measuring uncertainties are analyzed. Typical illustrations and results are given and discussed. More... »

PAGES

190-196

References to SciGraph publications

  • 1979-01. Use of a diametral blower in a flow-through laser with a closed gas-circulation system in JOURNAL OF ENGINEERING PHYSICS AND THERMOPHYSICS
  • Identifiers

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    http://scigraph.springernature.com/pub.10.1007/bf00265100

    DOI

    http://dx.doi.org/10.1007/bf00265100

    DIMENSIONS

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