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Proceedings Paper

Laser conditioning of optical coatings: a statistical study of defects by atomic force microscopy
Author(s): Anne Fornier; C. Cordillot; D. Bernardino; Dominique Ausserre; F. Paris
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Paper Abstract

Laser conditioning is a process which consists in illuminating a coating by a laser below damage threshold in order to increase this threshold value. In a previous study we had reported that laser conditioning actually results in minimization or elimination of surface defects present after coating elaboration. The present paper reports a statistical study whose goal is to seek a correlation between defects size and shape, and defect evolution during laser conditioning. In order to achieve this, hundreds of defects are individually analyzed before and after laser conditioning using Atomic Force Microscopy. The observed samples are e-beam deposited highly reflecting multilayers Zr02/Si02 and Hf02/Si02 mirrors, and also single layers of Si02 and Zr02.

Paper Details

Date Published: 27 May 1996
PDF: 1 pages
Proc. SPIE 2714, 27th Annual Boulder Damage Symposium: Laser-Induced Damage in Optical Materials: 1995, (27 May 1996); doi: 10.1117/12.240386
Show Author Affiliations
Anne Fornier, CEA/Ctr. d'Etudes de Limeil-Valenton (France)
C. Cordillot, CEA/Ctr. d'Etudes de Limeil-Valenton (France)
D. Bernardino, CEA/Ctr. d'Etudes de Limeil-Valenton (France)
Dominique Ausserre, Univ. du Maine (France)
F. Paris, Ctr. de Transfert de Technologie du Mans (France)

Published in SPIE Proceedings Vol. 2714:
27th Annual Boulder Damage Symposium: Laser-Induced Damage in Optical Materials: 1995
Harold E. Bennett; Arthur H. Guenther; Mark R. Kozlowski; Brian Emerson Newnam; M. J. Soileau, Editor(s)

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