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Proceedings Paper

Dye laser absorption probing of high-current pulsed volume discharge in argon
Author(s): Alexey B. Treshchalov; Alexander A. Lissovski
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Paper Abstract

Homogeneous volume discharge in high-pressure (up to 10 bar) argon is studied as a possible active medium for Ar2 VUV (126 nm) laser. Time dependences of the densities of Ar* (4s, 4p), Ar2* 4sσ a3Σu+ (v=0) were measured by the pulse dye laser absorption probing of the discharge plasma. Experimentally obtained temporal dependencies of several excited species are compared with calculated ones. Strong optical dynamic aberrations in the discharge plasma are observed for the probing laser beam. Nonuniform distribution of the pumping power density in the transverse cross section of the discharge is the reason of free electrons gradient. These phase aberrations are caused by negative contribution of free electrons to the refraction index.

Paper Details

Date Published: 31 May 2006
PDF: 8 pages
Proc. SPIE 6263, Atomic and Molecular Pulsed Lasers VI, 62630L (31 May 2006); doi: 10.1117/12.677439
Show Author Affiliations
Alexey B. Treshchalov, Tartu Ülikool (Estonia)
Alexander A. Lissovski, Tartu Ülikool (Estonia)


Published in SPIE Proceedings Vol. 6263:
Atomic and Molecular Pulsed Lasers VI
Victor F. Tarasenko; Georgy Mayer; Gueorgii G. Petrash, Editor(s)

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