Issues

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1973

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June

  

Reviews of topical problems


Vibrational relaxation in gases and molecular lasers

This article reviews the current status of the theory of vibrational relaxation in gases and its applications to the theory of molecular lasers. We discuss relaxation of the vibrational energy of diatomic and polyatomic molecules as represented by harmonic-oscillator models. The vibrational kinetics in a system of anharmonic oscillators is analyzed in detail. We treat quasi-steady-state population distributions of vibrational levels that arise under substantially non-equilibrium conditions, both in a singlecomponent molecular system and in gas mixtures. We discuss relaxation that proceeds in the presence of sources of vibrationally-excited molecules: infrared resonance radiation, recombination, and dissociation; in particular, we analyze the process of non-equilibrium dissociation at low gas temperatures. We discuss from a unified standpoint based on vibrational kinetics the working mechanisms of lasers using vibrational-rotational transitions in diatomic and polyatomic molecules with various means of excitation (electrical, chemical, and gas-dynamic).

PACS: 33.15.Mt, 33.80.−b, 51.10.+y, 82.30.Lp (all)
DOI: 10.1070/PU1973v015n06ABEH005065
URL: https://ufn.ru/en/articles/1973/6/f/
Citation: Gordiets B F, Osipov A I, Stupochenko E V, Shelepin L A "Vibrational relaxation in gases and molecular lasers" Sov. Phys. Usp. 15 759–785 (1973)
BibTexBibNote ® (generic)BibNote ® (RIS) MedlineRefWorks
PT Journal Article
TI Vibrational relaxation in gases and molecular lasers
AU Gordiets B F
FAU Gordiets BF
AU Osipov A I
FAU Osipov AI
AU Stupochenko E V
FAU Stupochenko EV
AU Shelepin L A
FAU Shelepin LA
DP 10 Jun, 1973
TA Phys. Usp.
VI 15
IP 6
PG 759-785
RX 10.1070/PU1973v015n06ABEH005065
URL https://ufn.ru/en/articles/1973/6/f/
SO Phys. Usp. 1973 Jun 10;15(6):759-785

Оригинал: Гордиец Б Ф, Осипов А И, Ступоченко Е В, Шелепин Л А «Колебательная релаксация в газах и молекулярные лазеры» УФН 108 655–699 (1972); DOI: 10.3367/UFNr.0108.197212c.0655

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