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Proceedings Paper

Sol gel optical thin films for an advanced megajoule-class Nd:glass-laser ICF driver
Author(s): Herve G. Floch; Philippe F. Belleville; Philippe M. Pegon; Corinne S. Dijonneau; Jacques R. Guerain
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Paper Abstract

It is well established by manufacturers and users that optical coatings are generally prepared by the well known Physical Vapor Deposition (PVD) technology. In the authors' opinion sol-gel technology is an effective and competitive alternative. The aim of this paper is to emphasize on the sol-gel thin film work carried out at CEA Limeil-Valenton and concerning the technology for high power lasers. We will briefly discuss the chemistry of the sol-gel process, the production of optical coatings and the related deposition techniques. Finally, the paper describes performance of sol-gel optical coatings we have developed to fulfill the requirements of a future 1.8 MJ I500TW (351 nm) pulsed Nd:glass laser so-called << LMJ << (Laser MegaJoules). This powerful laser is to be used for our national Inertial Confinement Fusion (ICF) program, to demonstrate at the laboratory scale, ignition of deuterium-tritium fusion fuel. Moreover, the aim of this article is, hopefully, to provide a convincing argument that coatings and particularly optical coatings, are some of the useful products available from sol-gel technology, and that exciting developments in other areas than high power laser technology are almost certain to emerge within the coming decade. Keywords : sol-gel, oxides, colloidal suspensions, optical coatings, laser damage

Paper Details

Date Published: 27 May 1996
PDF: 16 pages
Proc. SPIE 2714, 27th Annual Boulder Damage Symposium: Laser-Induced Damage in Optical Materials: 1995, (27 May 1996); doi: 10.1117/12.240367
Show Author Affiliations
Herve G. Floch, CEA/Ctr. d'Etudes de Limeil-Valenton (France)
Philippe F. Belleville, CEA/Ctr. d'Etudes de Limeil-Valenton (France)
Philippe M. Pegon, REOSC (France)
Corinne S. Dijonneau, REOSC (France)
Jacques R. Guerain, REOSC (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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