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Proceedings Paper

Stabilization and effective generation laser on SF6-H2 mixture
Author(s): Mikhail V. Erofeev; Victor M. Orlovskii; Victor S. Skakun; Edward A. Sosnin; Victor F. Tarasenko
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Paper Abstract

Energy, temporal and spectral characteristics of HF-laser pumped by non-chain chemical reaction initiated by radially converging e-beam, planar e-beam and non-self-sustained discharge have been investigated. The major channels of vibrationally excited HF molecules formation have been analysed. It has been confirmed that the high efficiency (~ 10 %) of non-chain HF laser can be reached only by simultaneous atomic and molecular fluorine formation under the action of e-beam and molecular fluorine participation in the inversion releasing process. It is shown that the laser pulse has a complex spectral-temporal structure caused by consecutive generation of the P-lines P2?P1?P3?P4?P5?P6 and overlapping of the rotary lines of the same oscillatory band and separate oscillatory lines during a pulse of radiation. With e-beam pumping of a 30 1 active volume laser, the output energy as high as 115 J and efficiency with respect to e-beam energy deposited into gas mixture up to 8 % were demonstrated. The optimal gas mixture SF6 : H2 =8 : 1 under pressure of 0.45 atm has been obtained. At pressure 1 .1 atm and non-uniform output distribution, total laser energy and efficiency with respect to e-beam energy deposited into gas were found to be up to 200 J and 1 1 %, respectively. Use of e-beam initiated low pressure pulsed discharge for excitation HF molecules leads to increase of radiation energy in 2.8 times. Also investigations on zeolite-based different absorbents influence on energy stability of HF-laser are presented and radiation energy decay after 103 shoots not more than 15-20 % is gained.

Paper Details

Date Published: 25 January 2001
PDF: 5 pages
Proc. SPIE 4184, XIII International Symposium on Gas Flow and Chemical Lasers and High-Power Laser Conference, (25 January 2001); doi: 10.1117/12.414037
Show Author Affiliations
Mikhail V. Erofeev, High Current Electronics Institute (Russia)
Victor M. Orlovskii, High Current Electronics Institute (Russia)
Victor S. Skakun, High Current Electronics Institute (Russia)
Edward A. Sosnin, High Current Electronics Institute (Russia)
Victor F. Tarasenko, High Current Electronics Institute (Russia)


Published in SPIE Proceedings Vol. 4184:
XIII International Symposium on Gas Flow and Chemical Lasers and High-Power Laser Conference
Antonio Lapucci; Marco Ciofini, Editor(s)

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