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Author Razhev, A. M. ♦ Kargapol'tsev, E. S. ♦ Churkin, D. S.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword ATOMIC AND MOLECULAR PHYSICS ♦ ARGON FLUORIDES ♦ ELECTRIC DISCHARGES ♦ KRYPTON FLUORIDE LASERS ♦ KRYPTON FLUORIDES ♦ LASER RADIATION ♦ MIXTURES ♦ MOLECULES ♦ PRESSURE RANGE KILO PA ♦ XENON CHLORIDES
Abstract Results of an experimental study of the influence of a gas mixture (laser active medium) composition on an output energy and total efficiency of gas-discharge excimer lasers on ArF* (193 nm), KrCl* (222 nm), KrF* (248 nm) and XeCl* (308 nm) molecules operating without a buffer gas are presented. The optimal ratios of gas components (from the viewpoint of a maximum output energy) of an active medium are found, which provide an efficient operation of laser sources. It is experimentally confirmed that for gas-discharge excimer lasers on halogenides of inert gases the presence of a buffer gas in an active medium is not a necessary condition for efficient operation. For the first time, in two-component gas mixtures of repetitively pulsed gas-discharge excimer lasers on electron transitions of excimer molecules ArF*, KrCl*, KrF* and XeCl*, the pulsed energy of laser radiation obtained under pumping by a transverse volume electric discharge in a low-pressure gas mixture without a buffer gas reached up to 170 mJ and a high pulsed output power (of up to 24 MW) was obtained at a FWHM duration of the KrF-laser pulse of 7 ns. The maximal total efficiency obtained in the experiment with two-component gas mixtures of KrF and XeCl lasers was 0.8%. (lasers)
ISSN 10637818
Educational Use Research
Learning Resource Type Article
Publisher Date 2016-03-31
Publisher Place United States
Journal Quantum Electronics
Volume Number 46
Issue Number 3


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