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Simulation and experimental studies on the evolution of a laser spark in air

Published online by Cambridge University Press:  09 March 2009

X. C. Zeng ,
D. P. Singh ,
V. Palleschi ,
A. Salvetti ,
M. De Rosa  and
M. Vaselli
X. C. Zeng
Affiliation:
Institute of Applied Physics and Computational Mathematics, P.O. Box 8009, 100088 Beijing, China
D. P. Singh
Affiliation:
Istituto Di Fisica Atomica E Molecolare del C.N.R., Via del Giardino 7, 56127 Pisa, Italy
V. Palleschi
Affiliation:
Istituto Di Fisica Atomica E Molecolare del C.N.R., Via del Giardino 7, 56127 Pisa, Italy
A. Salvetti
Affiliation:
Istituto Di Fisica Atomica E Molecolare del C.N.R., Via del Giardino 7, 56127 Pisa, Italy
M. De Rosa
Affiliation:
Istituto Di Fisica Atomica E Molecolare del C.N.R., Via del Giardino 7, 56127 Pisa, Italy
M. Vaselli
Affiliation:
Istituto Di Fisica Atomica E Molecolare del C.N.R., Via del Giardino 7, 56127 Pisa, Italy
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Abstract

Experimental and theoretical studies on the evolution of shock waves in air plasma induced by laser spark have been carried out. The systematic study of the shock wave has been performed experimentally and 1-D numerical code of radiation hydrodynamics (1-DRHC) has been used to simulate the later stage of laser spark in air. The numerical results on the propagation of shock waves and the expansion of hot plasma are presented and subsequent results on the first divergent and convergent shock waves are found to be in good agreement with the experimental data.

Type
Research Article
Information
Laser and Particle Beams , Volume 10 , Issue 4 , December 1992 , pp. 707 - 713
Copyright
Copyright © Cambridge University Press 1992

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References

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