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Proceedings Paper

High-damage-threshold pinhole for glass fusion laser applications
Author(s): Norman A. Kurnit; S. A. Letzring; Randall P. Johnson
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Paper Abstract

We are investigating methods to fabricate high-damage- threshold spatial-filter pinholes that might not be susceptible to plasma closure for relatively high energies and long pulses. These are based on the observation that grazing-incidence reflection from glass can withstand in excess of 5kJ/cm2 without plasma formation. The high damage threshold result from both the cos(theta) spreading of the energy across the surface and the reflection of large fraction of the energy from the surface, thereby greatly reducing the field strength within the medium.

Paper Details

Date Published: 23 July 1999
PDF: 5 pages
Proc. SPIE 3492, Third International Conference on Solid State Lasers for Application to Inertial Confinement Fusion, (23 July 1999); doi: 10.1117/12.354211
Show Author Affiliations
Norman A. Kurnit, Los Alamos National Lab. (United States)
S. A. Letzring, Los Alamos National Lab. (United States)
Randall P. Johnson, Los Alamos National Lab. (United States)


Published in SPIE Proceedings Vol. 3492:
Third International Conference on Solid State Lasers for Application to Inertial Confinement Fusion
W. Howard Lowdermilk, Editor(s)

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