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Proceedings Paper

Production of Ar metastables in a dielectric barrier discharge
Author(s): Pavel A. Mikheyev; Jiande Han; Amanda Clark; Carl Sanderson; Michael C. Heaven
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Paper Abstract

The results of experiments with a dielectric barrier discharge (DBD) are presented, where the production of metastable argon atoms was studied. The recently proposed optically pumped all-rare-gas laser (OPRGL) utilizes metastable atoms of heavier rare gases as lasing species. The required number density of metastables for efficient laser operation is 1012÷1013 cm-3 in an atmospheric pressure of He buffer gas. Recent experiments had shown that such densities are easily produced in a nanosecond pulsed discharge, even at pressures larger than atmospheric, but problems appear when one is trying to produce them in a CW regime. The reason for difficulties in the CW production of metastables at an atmospheric pressure seems to be the low value of the E/N parameter (<5-6 Td). In our experiments a 20 KHz DBD in 2-5% Ar mixture with He at an atmospheric pressure was studied. [Ar(1s5)] number density of the order of 1012 cm-3 was readily achieved. Temporal behavior of [Ar(1s5)] throughout the DBD cycle was obtained. The results demonstrate the feasibility of DBDs for OPRGL development.

Paper Details

Date Published: 13 January 2017
PDF: 6 pages
Proc. SPIE 10254, XXI International Symposium on High Power Laser Systems and Applications 2016, 102540X (13 January 2017); doi: 10.1117/12.2256172
Show Author Affiliations
Pavel A. Mikheyev, Lebedev Physical Institute (Russian Federation)
Samara Univ. (Russian Federation)
Emory Univ. (United States)
Jiande Han, Emory Univ. (United States)
Amanda Clark, U.S. Army Space and Missile Defense Command Army Forces Strategic Command (United States)
The Univ. of Alabama (United States)
Carl Sanderson, The Univ. of Alabama (United States)
Michael C. Heaven, Emory Univ. (United States)
Samara Univ. (Russian Federation)


Published in SPIE Proceedings Vol. 10254:
XXI International Symposium on High Power Laser Systems and Applications 2016
Dieter Schuoecker; Richard Majer; Julia Brunnbauer, Editor(s)

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