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Proceedings Paper

High-power optical coatings for a megajoule-class ICF laser
Author(s): Mark R. Kozlowski; Ian M. Thomas; Jack H. Campbell; Frank Rainer
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Paper Abstract

As a consequence of advancements in inertial confinement fusion research, LLNL is developing plans for a new 1.5 to 2 mega-joule solid-state Nd:glass laser designed to achieve fusion ignition. The new design is possible in part due to advances in optical coatings suitable for high-power laser systems. High damage threshold mirrors and polarizers are comprised of electron-beam deposited dielectric multilayers. Subthreshold illumination, or laser conditioning, of the multilayer coatings results in an increase in the damage thresholds by factors of 2 to 3 at 1.06 micrometers , thus meeting the fluence requirements of the advanced architecture. For anti-reflective coatings, protective organic coatings for non-linear crystals and phase plates for beam smoothing, sol-gel films provide high damage thresholds coatings at low cost.

Paper Details

Date Published: 4 March 1993
PDF: 15 pages
Proc. SPIE 1782, Thin Films for Optical Systems, (4 March 1993); doi: 10.1117/12.141024
Show Author Affiliations
Mark R. Kozlowski, Lawrence Livermore National Lab. (United States)
Ian M. Thomas, Lawrence Livermore National Lab. (United States)
Jack H. Campbell, Lawrence Livermore National Lab. (United States)
Frank Rainer, Lawrence Livermore National Lab. (United States)

Published in SPIE Proceedings Vol. 1782:
Thin Films for Optical Systems

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