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Title: Reflective optics system for multiple beam laser fusion

Abstract

A reflective optics system is described that will uniformly heat or transfer momentum to a spherical target. Six laser beams or three split beams are incident along three mutually perpendicular axes. The beams are reflected from cones with a 45/sup 0/ half-angle onto an aspheric reflector wing shaped to impart uniform heat or momentum to the target. A sample calculation shows that, for a target sphere with 1.5 index of refraction, 93% of the energy incident on the target is transmitted into the target. For smaller indices, a greater fraction of the incident energy is imparted to the target. The design provides completely uniform transmitted light as well as nearly orthogonal distribution of light over the target and is relatively insensitive to alignment errors.

Authors:
;
Publication Date:
Research Org.:
University of Georgia, Department of Physics and Astronomy, Athens, Georgia 30602
OSTI Identifier:
5904092
Resource Type:
Journal Article
Journal Name:
Appl. Opt.; (United States)
Additional Journal Information:
Journal Volume: 22:9
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; LASER TARGETS; LASER-RADIATION HEATING; LIGHT TRANSMISSION; REFLECTIVITY; OPTICAL SYSTEMS; DESIGN; INERTIAL CONFINEMENT; LASER FUSION REACTORS; REFLECTION; SPHERES; CONFINEMENT; HEATING; OPTICAL PROPERTIES; PHYSICAL PROPERTIES; PLASMA CONFINEMENT; PLASMA HEATING; SURFACE PROPERTIES; TARGETS; THERMONUCLEAR REACTORS; 700208* - Fusion Power Plant Technology- Inertial Confinement Technology

Citation Formats

Burkhard, D G, and Strobel, G L. Reflective optics system for multiple beam laser fusion. United States: N. p., 1983. Web. doi:10.1364/AO.22.001313.
Burkhard, D G, & Strobel, G L. Reflective optics system for multiple beam laser fusion. United States. doi:10.1364/AO.22.001313.
Burkhard, D G, and Strobel, G L. Sun . "Reflective optics system for multiple beam laser fusion". United States. doi:10.1364/AO.22.001313.
@article{osti_5904092,
title = {Reflective optics system for multiple beam laser fusion},
author = {Burkhard, D G and Strobel, G L},
abstractNote = {A reflective optics system is described that will uniformly heat or transfer momentum to a spherical target. Six laser beams or three split beams are incident along three mutually perpendicular axes. The beams are reflected from cones with a 45/sup 0/ half-angle onto an aspheric reflector wing shaped to impart uniform heat or momentum to the target. A sample calculation shows that, for a target sphere with 1.5 index of refraction, 93% of the energy incident on the target is transmitted into the target. For smaller indices, a greater fraction of the incident energy is imparted to the target. The design provides completely uniform transmitted light as well as nearly orthogonal distribution of light over the target and is relatively insensitive to alignment errors.},
doi = {10.1364/AO.22.001313},
journal = {Appl. Opt.; (United States)},
number = ,
volume = 22:9,
place = {United States},
year = {1983},
month = {5}
}