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Proceedings Paper

Spatial and temporal development of discharge instabilities in fluorine based excimer laser gas mixtures
Author(s): D. Mathew; H. M. J. Bastiaens; K.-J. Boller; P. J. M. Peters
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Paper Abstract

The influence of the buffer gases on the discharge homogeneity of F2doped excimer laser gas mixtures is investigated in a small x-ray preionised high-pressure discharge chamber. The spatial and temporal development of discharges in He/F2 and Ne/F2 gas mixtures is monitored via its fluorescence using an intensified CCD camera with a gating time of 300 ps. The formation and development of discharge filaments in He/F2 gas mixtures is completely different from that in Ne/F2. Under the same start up conditions, discharges in Ne/F2 are dominated by cathode hotspots where as no hot spots are visible in discharges in He/F2 gas mixtures. However, the discharges in Ne/F2 gas mixtures appear to be more uniform even though the discharge width decreases in time and hotspots are persistent on the cathode surface.

Paper Details

Date Published: 12 October 2005
PDF: 5 pages
Proc. SPIE 5958, Lasers and Applications, 59581A (12 October 2005); doi: 10.1117/12.622900
Show Author Affiliations
D. Mathew, Univ. of Twente (Netherlands)
H. M. J. Bastiaens, Univ. of Twente (Netherlands)
K.-J. Boller, Univ. of Twente (Netherlands)
P. J. M. Peters, Univ. of Twente (Netherlands)


Published in SPIE Proceedings Vol. 5958:
Lasers and Applications
Krzysztof M. Abramski; Antonio Lapucci; Edward F. Plinski, Editor(s)

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