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Proceedings Paper

Optical damage of sputtered gold films irradiated with femtosecond laser pulses
Author(s): R. Boedefeld; J. Schreiber; H. Gessner; Eberhard Welsch; Wolfgang Theobald; Thomas Feurer; Roland A. Sauerbrey
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Paper Abstract

Multi-shot damage tests were performed of gold coated mirrors in the femtosecond and in the nanosecond laser pulse regime. Sputtered gold films from different suppliers of various thicknesses were investigated. Considerable differences in the optical quality and the damage threshold are reported. The best films withstand a maximum fluence of 0.7 J/cm2 for 50-fs Ti:sapphire laser irradiation (804 nm) and 7 J/cm2 for 8-ns Nd:YAG irradiation (1064 nm). For gold films with poor optical quality a permanent surface modification one order of magnitude below the damage threshold was observed.

Paper Details

Date Published: 12 April 2001
PDF: 8 pages
Proc. SPIE 4347, Laser-Induced Damage in Optical Materials: 2000, (12 April 2001); doi: 10.1117/12.425075
Show Author Affiliations
R. Boedefeld, Friedrich-Schiller-Univ. Jena (Germany)
J. Schreiber, Friedrich-Schiller-Univ. Jena (Germany)
H. Gessner, Friedrich-Schiller-Univ. Jena (Germany)
Eberhard Welsch, Friedrich-Schiller-Univ. Jena (Germany)
Wolfgang Theobald, Friedrich-Schiller-Univ. Jena (Germany)
Thomas Feurer, Friedrich-Schiller-Univ. Jena (Germany)
Roland A. Sauerbrey, Friedrich-Schiller-Univ. Jena (Germany)

Published in SPIE Proceedings Vol. 4347:
Laser-Induced Damage in Optical Materials: 2000
Gregory J. Exarhos; Arthur H. Guenther; Mark R. Kozlowski; Keith L. Lewis; M. J. Soileau, Editor(s)

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