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Kvantovaya Elektronika, 2001, Volume 31, Number 7, Pages 611–616 (Mi qe2013)  

Lasers. Active media

Optical pumping of chemical HF lasers on the basis of NF3–H2 and ClF5–H2 mixtures by an open surface discharge in the bleaching-wave mode

M. Yu. Artem'eva, A. S. Bashkinb, L. D. Mikheeva, V. M. Nesterova, M. Sentisc, V. I. Cheremiskina

a P. N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow
b NPO Energomash, Khimki, Moscow Region
c Institut de Recherche sur les Phenomenes Hors Equilibre, France

Abstract: Lasing on HF upon optical pumping by emission of an open discharge, using NF3 and ClF5 as donors of fluorine atoms, was obtained for the first time in a chemical laser and the bleaching-wave mode was realised in a chemical HF laser. An open surface discharge was used as a pump source. The velocity of the bleaching wave, which was formed under its action, reached ~8 km s-1. The formation of this wave leads to a rapid (with an ultrasonic velocity) replacement of the working medium in the lasing region, which provides a quantum laser efficiency close to unity. The optimum compo-sition of the working mixture was found to be NF3:H2:Kr = 6:10:125 Torr. For this composition, the output laser energy in a 3.2-μs pulse reached ~0.4 J and the specific output energy was 3.5 J litre-1. Approximately the same output characteristics of laser emission (0.35 J in a 3.5-μs pulse in the ClF5:H2:Kr=3:20:50 Torr mixture) were obtained in the system using ClF5 as donors of fluorine atoms.

Full text: PDF file (209 kB)

English version:
Quantum Electronics, 2001, 31:7, 611–616

Bibliographic databases:

PACS: 42.55.Ks, 42.60.Lh, 52.80.Mg
Received: 14.06.2000
Revised: 11.02.2001

Citation: M. Yu. Artem'ev, A. S. Bashkin, L. D. Mikheev, V. M. Nesterov, M. Sentis, V. I. Cheremiskin, “Optical pumping of chemical HF lasers on the basis of NF3–H2 and ClF5–H2 mixtures by an open surface discharge in the bleaching-wave mode”, Kvantovaya Elektronika, 31:7 (2001), 611–616 [Quantum Electron., 31:7 (2001), 611–616]

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