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Proceedings Paper

Impact of contaminates on the laser damage threshold of 1ω HR coatings
Author(s): Mary A. Norton; Christopher J. Stolz; Eugene E. Donohue; William G. Hollingsworth; Kalvin Listiyo; James A. Pryatel; Richard P. Hackel
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Paper Abstract

In operational laser systems, it is often difficult to keep optical components completely free of foreign material. We have investigated the performance of high damage threshold 1.053 μm high reflectors in the presence of surface contaminants. We have looked at the impact of stainless steel, aluminum, Azurlite(R), dust, cotton fibers and polyester fibers on the performance of the mirrors under laser irradiation. The first four contaminants were deposited in sizes ranging from 30 microns to 150 microns. The fibers included lengths ranging to several millimeters. The testing was done at either a single fluence in the range of 6 J/cm2 to 24 J/cm2, or a ramped sequence of shots starting at 1 J/cm2. We will present data showing the onset of damage, the type of damage, and the propensity to damage growth in the fluence range studied.

Paper Details

Date Published: 7 February 2006
PDF: 9 pages
Proc. SPIE 5991, Laser-Induced Damage in Optical Materials: 2005, 59910O (7 February 2006); doi: 10.1117/12.638832
Show Author Affiliations
Mary A. Norton, Lawrence Livermore National Lab. (United States)
Christopher J. Stolz, Lawrence Livermore National Lab. (United States)
Eugene E. Donohue, Lawrence Livermore National Lab. (United States)
William G. Hollingsworth, Lawrence Livermore National Lab. (United States)
Kalvin Listiyo, Lawrence Livermore National Lab. (United States)
James A. Pryatel, Lawrence Livermore National Lab. (United States)
Richard P. Hackel, Lawrence Livermore National Lab. (United States)


Published in SPIE Proceedings Vol. 5991:
Laser-Induced Damage in Optical Materials: 2005
Gregory J. Exarhos; Arthur H. Guenther; Keith L. Lewis; Detlev Ristau; M.J. Soileau; Christopher J. Stolz, Editor(s)

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