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Proceedings Paper

Manufacture, optical performance, and laser damage characteristics of diffractive optics for the National Ignition Facility
Author(s): Jerald A. Britten; Steve M. Herman; Leslie J. Summers; Michael C. Rushford; Lun Auyang; I. M. Barton; Bruce W. Shore; Sham N. Dixit; Thomas G. Parham; Curly R. Hoaglan; Charles T. Thompson; Colin L. Battersby; J. M. Yoshiyama; Ron P. Mouser
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Paper Abstract

We have fabricated demonstration diffractive optic plates at full scale for the NIF laser. These include an off-axis focusing beam sampling grating, a color separation grating, and a kinoform phase plate for spatial beam smoothing. Fabrication methods and optical performance of these DOPs are discussed. IT was discovered that the sol-gel antireflective coating normally applied to high-power transmissive optics partially planarizes the diffractive structures, particularly on the color separation grating used for color management at target, to the extent that optical performance and laser damage threshold are negatively impacted. The effect of sol-gel coatings on grating performance, the feasibility of placing all diffractive structures on a single surface, and future work in this area are discussed.

Paper Details

Date Published: 7 April 1999
PDF: 10 pages
Proc. SPIE 3578, Laser-Induced Damage in Optical Materials: 1998, (7 April 1999); doi: 10.1117/12.344461
Show Author Affiliations
Jerald A. Britten, Lawrence Livermore National Lab. (United States)
Steve M. Herman, Lawrence Livermore National Lab. (United States)
Leslie J. Summers, Lawrence Livermore National Lab. (United States)
Michael C. Rushford, Lawrence Livermore National Lab. (United States)
Lun Auyang, Lawrence Livermore National Lab. (United States)
I. M. Barton, Lawrence Livermore National Lab. (United States)
Bruce W. Shore, Lawrence Livermore National Lab. (United States)
Sham N. Dixit, Lawrence Livermore National Lab. (United States)
Thomas G. Parham, Lawrence Livermore National Lab. (United States)
Curly R. Hoaglan, Lawrence Livermore National Lab. (United States)
Charles T. Thompson, Lawrence Livermore National Lab. (United States)
Colin L. Battersby, Lawrence Livermore National Lab. (United States)
J. M. Yoshiyama, Lawrence Livermore National Lab. (United States)
Ron P. Mouser, Lawrence Livermore National Lab. (United States)


Published in SPIE Proceedings Vol. 3578:
Laser-Induced Damage in Optical Materials: 1998
Gregory J. Exarhos; Arthur H. Guenther; Mark R. Kozlowski; Keith L. Lewis; M. J. Soileau, Editor(s)

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