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Proceedings Paper

Damage of mirrors under high-power continuous wave CO2 laser irradiation: threshold and aging
Author(s): Jean Hue; Jean DiJon; Philippe Lyan
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Paper Abstract

In this paper, the destruction of the mirrors under continuous wave (cw) laser irradiation is studied. The existence of a critical temperature, at which the mirrors are destroyed, has been already established. But two damage processes are associated with this temperature: the threshold and the ageing. The threshold occurs when the mirror reaches this critical temperature at the steady-state. The threshold essentially depends on the thermal conductivity of the substrate. The ageing processes begin after the thermal equilibrium time and depend essentially on the physical properties of the thin films. The ageing procedure proposed is used in order to compare the mirrors lifetime.

Paper Details

Date Published: 4 November 1994
PDF: 12 pages
Proc. SPIE 2253, Optical Interference Coatings, (4 November 1994); doi: 10.1117/12.192152
Show Author Affiliations
Jean Hue, Laserdot (France)
Jean DiJon, CEA-LETI (France)
Philippe Lyan, CEA-LETI (France)

Published in SPIE Proceedings Vol. 2253:
Optical Interference Coatings
Florin Abeles, Editor(s)

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