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Title: High-Damage-Threshold Pinhole for Glass Fusion Laser Applications

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 5 kJ/cm{sup 2} (normal to the beam) without plasma formation. The high damage threshold results from both the cos q spreading of the energy across the surface and the reflection of a large fraction of the energy from the surface, thereby greatly reducing the field strength within the medium.

Authors:
; ;
Publication Date:
Research Org.:
Los Alamos National Lab., NM (US)
Sponsoring Org.:
USDOE Office of Defense Programs (DP) (US)
OSTI Identifier:
762102
Report Number(s):
LA-UR-98-3626
TRN: US0100122
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Conference
Resource Relation:
Conference: Third Annual International Conference on Solid State Lasers for Application to Inertial Confinement Fusion, Monterey, CA (US), 06/07/1998--06/12/1998; Other Information: PBD: 7 Jun 1998
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; CLOSURES; GLASS; INERTIAL CONFINEMENT; LASERS; PLASMA; REFLECTION; SOLID STATE LASERS; SPATIAL FILTERS; OPTICAL BREAKDOWN; DAMAGE THRESHOLDS

Citation Formats

Kumit, N A, Letzring, S A, and Johnson, R P. High-Damage-Threshold Pinhole for Glass Fusion Laser Applications. United States: N. p., 1998. Web.
Kumit, N A, Letzring, S A, & Johnson, R P. High-Damage-Threshold Pinhole for Glass Fusion Laser Applications. United States.
Kumit, N A, Letzring, S A, and Johnson, R P. Sun . "High-Damage-Threshold Pinhole for Glass Fusion Laser Applications". United States. https://www.osti.gov/servlets/purl/762102.
@article{osti_762102,
title = {High-Damage-Threshold Pinhole for Glass Fusion Laser Applications},
author = {Kumit, N A and Letzring, S A and Johnson, R P},
abstractNote = {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 5 kJ/cm{sup 2} (normal to the beam) without plasma formation. The high damage threshold results from both the cos q spreading of the energy across the surface and the reflection of a large fraction of the energy from the surface, thereby greatly reducing the field strength within the medium.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {6}
}

Conference:
Other availability
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