Brief Communications

Loss of vibrational equilibrium between CO₂ molecular levels coupled by a Fermi resonance in amplifying media

V. V. Nevdakh


Abstract: It is shown that a Fermi resonance between the 10⁰0 and 02⁰0 vibrational levels does not establish a Boltzmann distribution of these level populations under conditions typical of cw and pulsed CO₂ lasers, i.e., the condition T₁= T₂ widely used in calculations of these lasers is not satisfied.

UDC: 621.373.826

PACS: 42.55.Lt, 33.20.Tp, 33.15.Mt

Received: 08.10.1984

 English version: Soviet Journal of Quantum Electronics, 1985, 15:6, 881–883

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