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Effects of magnetic fields on wave propagation in dense laser-produced plasmas

Published online by Cambridge University Press:  09 April 2001

R.A. CAIRNS  and
B. RAU
R.A. CAIRNS
Affiliation:
School of Mathematical and Computational Sciences, University of St Andrews, St Andrews, Fife KY16 9SS, UK
B. RAU
Affiliation:
School of Mathematical and Computational Sciences, University of St Andrews, St Andrews, Fife KY16 9SS, UK Present address: Helsinki University of Technology, Department of Engineering Physics and Mathematics, FIN-02015 HUT, Finland
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Abstract

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Simulations of the interaction of very intense short pulse lasers with solid density plasmas have indicated that there may be very high magnetic fields and electron temperatures in the vicinity of the focal spot. We investigate the propagation of an incident electromagnetic wave under these conditions, both analytically and by means of a particle code, and show that the evanescence length of the wave field in a highly overdense plasma may be much greater than is usually supposed. This effect could be important in understanding the penetration of energy into the overdense region and the particle heating and acceleration which takes place there.

Type
ULIA-1 CONFERENCE PAPERS
Information
Laser and Particle Beams , Volume 18 , Issue 3 , July 2000 , pp. 355 - 360
Copyright
© 2000 Cambridge University Press