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Propagation of electromagnetic waves in inhomogeneous plasmas

Published online by Cambridge University Press:  13 March 2009

E. Busatti ,
A. Ciucci ,
M. De Rosa ,
V. Palleschi ,
S. Rastelli ,
M. Lontano  and
N. Lunin†
E. Busatti
Affiliation:
Istituto di Fisica Atomica e Molecolare del C.N.R., Via del Giardino, 7-56127 Pisa, Italy
A. Ciucci
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
V. Palleschi
Affiliation:
Istituto di Fisica Atomica e Molecolare del C.N.R., Via del Giardino, 7-56127 Pisa, Italy
S. Rastelli
Affiliation:
Istituto di Fisica Atomica e Molecolare del C.N.R., Via del Giardino, 7-56127 Pisa, Italy
M. Lontano
Affiliation:
Istituto di Fisica del Plasma, EURATOM-ENEA-CNR Association, Via Bassini, 15-20133 Milano, Italy
N. Lunin†
Affiliation:
Istituto di Fisica del Plasma, EURATOM-ENEA-CNR Association, Via Bassini, 15-20133 Milano, Italy
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Extract

The reflection and transmission coefficients for an electromagnetic beam propagating in an inhomogeneous plasma are calculated analytically using the Magnus approximation in different physical configurations. The theoretical predictions for such coefficients are expressed in simple analytical form, and are compared with the exact results obtained by numerical solution of the wave propagation equations, using the Berreman 4 × 4 matrix method. It is shown that the theoretical approach is able to reproduce the correct results for reflection and transmission coefficients over a wide range of physical parameters. The accuracy of the theoretical analysis, at different orders of approximation, is also discussed.

Type
Research Article
Information
Journal of Plasma Physics , Volume 52 , Issue 3 , December 1994 , pp. 443 - 456
Copyright
Copyright © Cambridge University Press 1994

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