Alkali resistant optical coatings for alkali lasers and methods of production thereof
Abstract
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:
- Research Org.:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1164003
- Patent Number(s):
- 8889251
- Application Number:
- 13/023,841
- Assignee:
- Lawrence Livermore National Security, LLC. (Livermore, CA)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C23 - COATING METALLIC MATERIAL C23C - COATING METALLIC MATERIAL
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01S - DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT
- DOE Contract Number:
- AC52-07NA27344
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
Citation Formats
Soules, Thomas F, Beach, Raymond J, and Mitchell, Scott C. Alkali resistant optical coatings for alkali lasers and methods of production thereof. United States: N. p., 2014.
Web.
Soules, Thomas F, Beach, Raymond J, & Mitchell, Scott C. Alkali resistant optical coatings for alkali lasers and methods of production thereof. United States.
Soules, Thomas F, Beach, Raymond J, and Mitchell, Scott C. Tue .
"Alkali resistant optical coatings for alkali lasers and methods of production thereof". United States. https://www.osti.gov/servlets/purl/1164003.
@article{osti_1164003,
title = {Alkali resistant optical coatings for alkali lasers and methods of production thereof},
author = {Soules, Thomas F and Beach, Raymond J and Mitchell, Scott C},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2014},
month = {11}
}
Works referenced in this record:
Multilayer nanolaminates containing polycrystalline zirconia
patent, December 1995
- Atita, Carolyn R.
- US Patent Document 5,472,795
Thin hafnium oxide film and method for depositing same
patent, May 2006
- Andre, Bernard; Dijon, Jean; Rafin, Brigitte
- US Patent Document 7,037,595
Pulsed laser deposition of alumina and zirconia thin films on polymers and glass as optical and protective coatings
journal, September 1999
- Gottmann, J.; Kreutz, E. W.
- Surface and Coatings Technology, Vol. 116-119, p. 1189-1194