Abstract
Lasing and discharge in mixtures of SF6 with hydrogen and hydrocarbons are investigated. If the chemical reaction is initiated by a self-sustained discharge (a generator with both an inductive and capacitive energy storage can be used), the maximum lasing efficiency is attained at high values of the ratio E/p (where E is the electric field intensity and p is the pressure in the mixture) if shaped electrodes and preionization of the discharge gap are employed. For the first time, the lasing efficiency obtained in a nonchain HF laser is as high as 10% of the energy deposit and 4.5% of the stored energy for a specific radiation energy of ≈140 J/(l atm). At high efficiencies, the emission spectrum of the nonchain HF laser significantly broadens and cascade lasing at P(3-2) → P(2-1) → P(1-0) vibrational transitions for several rotational lines is realized.
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Translated from Zhurnal Tekhnichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l}\) Fiziki, Vol. 73, No. 2, 2003, pp. 136–138.
Original Russian Text Copyright © 2003 by Panchenko, Orlovski\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l}\), Tarasenko.
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Panchenko, A.N., Orlovskii, V.M. & Tarasenko, V.F. Effective nonchain HF laser excited by a self-sustained discharge. Tech. Phys. 48, 267–269 (2003). https://doi.org/10.1134/1.1553573
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DOI: https://doi.org/10.1134/1.1553573