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Non-uniform target illumination in deflagration regime. Refractive smoothing

Published online by Cambridge University Press:  09 March 2009

J. A. Nicolás ,
J. Sanz ,
J. R. Sanmartín  and
J. Hilario
J. A. Nicolás
Affiliation:
Escuela Técnica Superior de Ingenieros Aeronáuticos, Universidad Politécnica, 28040-Madrid, Spain
J. Sanz
Affiliation:
Escuela Técnica Superior de Ingenieros Aeronáuticos, Universidad Politécnica, 28040-Madrid, Spain
J. R. Sanmartín
Affiliation:
Escuela Técnica Superior de Ingenieros Aeronáuticos, Universidad Politécnica, 28040-Madrid, Spain
J. Hilario
Affiliation:
Escuela Técnica Superior de Ingenieros Aeronáuticos, Universidad Politécnica, 28040-Madrid, Spain
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Abstract

Refractive smoothing of weak non-uniformities in the illumination of laser targets is analyzed, assuming absorption at the critical density and restricting conduction to a thin layer, and using results from thermal smoothing, which is uncoupled from the refraction. Magnetic effects are included. Non-uniformity wavelengths comparable to the thickness of the conduction layer are considered; efficient smoothing exists at both short and long wavelengths in this range. Thermal focusing could make the ablated plasma unstable.

Type
Research Article
Information
Laser and Particle Beams , Volume 7 , Issue 3 , August 1989 , pp. 627 - 635
Copyright
Copyright © Cambridge University Press 1989

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