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U.S. Department of Energy
Office of Scientific and Technical Information

Metal-overcoated grating and method

Patent ·
OSTI ID:1892935
Metallic overcoated diffraction gratings are particularly useful for high average power laser pulse compression. A dielectric oxide layer is attached to an etch-stop layer, where the dielectric oxide layer comprises a grating pattern including grating lines. Sidewalls of the grating lines taper together toward an upper surface of the dielectric oxide layer. A metallic overcoat is attached to the etch-stop layer and the dielectric oxide layer.
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):
11,333,807
Application Number:
16/620,139
OSTI ID:
1892935
Country of Publication:
United States
Language:
English