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Proceedings Paper

Pulsed discharge production Ar* metastables
Author(s): Jiande Han; Michael C. Heaven; Daniel Emmons; Glen P. Perram; David E. Weeks; William F. Bailey
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Paper Abstract

The production of relatively high densities of Ar* metastables (>1012 cm-3) in Ar/He mixtures, at total pressures close to 1 atm, is essential for the efficient operation of an optically pumped Ar* laser. We have used emission spectroscopy and diode laser absorption spectroscopy measurements to observe the production and decay of Ar* in a parallel plate pulsed discharge. With discharge pulses of 1 μs duration we find that metastable production is dominated by processes occurring within the first 100 ns of the gas break-down. Application of multiple, closely spaced discharge pulses yields insights concerning conditions that favor metastable production. This information has been combined with time-resolved measurements of voltage and current. The experimental results and preliminary modeling of the discharge kinetics are presented.

Paper Details

Date Published: 22 April 2016
PDF: 10 pages
Proc. SPIE 9729, High Energy/Average Power Lasers and Intense Beam Applications IX, 97290D (22 April 2016); doi: 10.1117/12.2218122
Show Author Affiliations
Jiande Han, Emory Univ. (United States)
Michael C. Heaven, Emory Univ. (United States)
Daniel Emmons, Air Force Institute of Technology (United States)
Glen P. Perram, Air Force Institute of Technology (United States)
David E. Weeks, Air Force Institute of Technology (United States)
William F. Bailey, Air Force Institute of Technology (United States)


Published in SPIE Proceedings Vol. 9729:
High Energy/Average Power Lasers and Intense Beam Applications IX
Steven J. Davis; Michael C. Heaven; J. Thomas Schriempf, Editor(s)

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