Wide spectrum antireflective coating for laser fusion systems. Final report

Technical Report · Fri Jan 13 00:00:00 EST 1984

DOI:https://doi.org/10.2172/7044706· OSTI ID:7044706

Yoldas, B E; Partlow, D P; Smith, H D; Mattox, D M

A method of depositing a laser damage resistant, wide-spectrum antireflective coating on fused silica has been developed. This work was sponsored under a subcontract with the University of California, with technical direction from the Lawrence Livermore National Laboratory. The coating is applied from a specific silanol polymer solution and converted to a porous SiO/sub 2/ film. The pore size of the film is first reduced by a heat treatment to prevent uv scattering. Then gradation of the pore volume is achieved by a mild etching to a sufficient depth to prevent a smoother index transition from air to the substrate glass. The resulting antireflectivity covers the entire transmission range of silica and may be extended to a wavelength as short as 250 nm. Laser damage thresholds as high as 9 j/cm/sup 2/ have been demonstrated on processed samples.

• Research Organization: Westinghouse Research and Development Center, Pittsburgh, PA (USA)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 7044706
• Report Number(s): UCRL-15600; ON: DE84013211
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ANTIREFLECTION COATINGS
LASER FUSION REACTORS
OPTICAL SYSTEMS
ETCHING
LASER RADIATION
RADIATION EFFECTS
SILICON OXIDES
SUBSTRATES
CHALCOGENIDES
COATINGS
ELECTROMAGNETIC RADIATION
OXIDES
OXYGEN COMPOUNDS
RADIATIONS
SILICON COMPOUNDS
SURFACE FINISHING
THERMONUCLEAR REACTORS
700208* - Fusion Power Plant Technology- Inertial Confinement Technology