Small signal gain in optically pumped molecular vapour

J. S. Bakos

doi:10.1117/12.2297869

1 October 1991 Small signal gain in optically pumped molecular vapour

J. S. Bakos

Proceedings Volume 1576, 16th International Conference on Infrared and Millimeter Waves; 15764C (1991) https://doi.org/10.1117/12.2297869
Event: 16th International Conference on Infrared and Millimeter Waves, 1991, Lausanne, Switzerland

Abstract

In an optically pumped far-infrared (FIR) laser the molecular gas is excited from its ground vibrational state to a higher vibrational state by an external laser source (usually a CO₂ laser). Population inversion is obtained between two rotational levels within the excited vibrational state. The laser cycle is closed by the relaxation of molecules from the excited vibrational state to the ground state .

Citation Download Citation

J. S. Bakos "Small signal gain in optically pumped molecular vapour", Proc. SPIE 1576, 16th International Conference on Infrared and Millimeter Waves, 15764C (1 October 1991); https://doi.org/10.1117/12.2297869

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