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Title: Alkali resistant optical coatings for alkali lasers and methods of production thereof

In one embodiment, a multilayer dielectric coating for use in an alkali laser includes two or more alternating layers of high and low refractive index materials, wherein an innermost layer includes a thicker, >500 nm, and dense, >97% of theoretical, layer of at least one of: alumina, zirconia, and hafnia for protecting subsequent layers of the two or more alternating layers of high and low index dielectric materials from alkali attack. In another embodiment, a method for forming an alkali resistant coating includes forming a first oxide material above a substrate and forming a second oxide material above the first oxide material to form a multilayer dielectric coating, wherein the second oxide material is on a side of the multilayer dielectric coating for contacting an alkali.
Inventors:
; ;
Issue Date:
OSTI Identifier:
1164003
Assignee:
Lawrence Livermore National Security, LLC. (Livermore, CA) LSO
Patent Number(s):
8,889,251
Application Number:
13/023,841
Contract Number:
AC52-07NA27344
Research Org:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS

Other works cited in this record:

Pulsed laser deposition of alumina and zirconia thin films on polymers and glass as optical and protective coatings
journal, September 1999

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