Alkali resistant optical coatings for alkali lasers and methods of production thereof
Patent
·
OSTI ID:1164003
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.
- Research Organization:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC52-07NA27344
- Assignee:
- Lawrence Livermore National Security, LLC. (Livermore, CA)
- Patent Number(s):
- 8,889,251
- Application Number:
- 13/023,841
- OSTI ID:
- 1164003
- Country of Publication:
- United States
- Language:
- English
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