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Observation of long life plasma generated in a cavity by CO2 lasers

Published online by Cambridge University Press:  09 March 2009

H. Daido
Affiliation:
Institute of Laser Engineering, Osaka University, Suita, Osaka 565, Japan
M. Fujita
Affiliation:
Institute of Laser Engineering, Osaka University, Suita, Osaka 565, Japan
K. Terai
Affiliation:
Institute of Laser Engineering, Osaka University, Suita, Osaka 565, Japan
F. Miki
Affiliation:
Institute of Laser Engineering, Osaka University, Suita, Osaka 565, Japan
K. Nishihara
Affiliation:
Institute of Laser Engineering, Osaka University, Suita, Osaka 565, Japan
M. Murakami
Affiliation:
Institute of Laser Engineering, Osaka University, Suita, Osaka 565, Japan
K. Mima
Affiliation:
Institute of Laser Engineering, Osaka University, Suita, Osaka 565, Japan
S. Nakai
Affiliation:
Institute of Laser Engineering, Osaka University, Suita, Osaka 565, Japan
C. Yamanaka
Affiliation:
Institute of Laser Engineering, Osaka University, Suita, Osaka 565, Japan
A. Hasegawa
Affiliation:
Institute of Laser Engineering, Osaka University, Suita, Osaka 565, Japan

Abstract

Plasmas with long life times (∼20 ns) are generated in a cavity target by intense CO2 laser pulses (2 × 1014W/cm2). The plasma life depends on the configuration of irradiation and target, which may infer thermal conduction inhibition by the laser-generated magnetic field. The experimental results agree with those of computer simulations with magnetic inhibition of thermal conduction.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1986

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