Leaky unstable modes and electromagnetic radiation amplification by an anisotropic plasma slab

The interaction between electromagnetic radiation and a photoionized plasma slab with an anisotropic electron velocity distribution is studied. It is shown that the fields of leaky modes are amplified due to the development of aperiodic instability in the slab, which leads to an increase in both the...

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Bibliographic Details
Published in:	Plasma physics reports Vol. 41; no. 9; pp. 744 - 757
Main Authors:	Vagin, K. Yu, Uryupin, S. A.
Format:	Journal Article
Language:	English
Published:	Moscow Pleiades Publishing 01-09-2015
Subjects:	70 PLASMA PHYSICS AND FUSION TECHNOLOGY AMPLIFICATION ANISOTROPY Atomic ELECTRONS LANGMUIR FREQUENCY Laser Plasma Molecular Optical and Plasma Physics PHOTOIONIZATION Physics Physics and Astronomy PLASMA PLASMA INSTABILITY SLABS VELOCITY VISIBLE RADIATION Leaky Mode Plasma Physic Report Transmitted Field Slab Thickness Plasma Boundary
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Summary:	The interaction between electromagnetic radiation and a photoionized plasma slab with an anisotropic electron velocity distribution is studied. It is shown that the fields of leaky modes are amplified due to the development of aperiodic instability in the slab, which leads to an increase in both the reflected and transmitted fields. The transmitted field can significantly increase only if the slab thickness does not exceed the ratio of the speed of light to the electron plasma frequency, whereas there is no upper bound on the slab thickness for the reflected signal to be amplified.
ISSN:	1063-780X 1562-6938
DOI:	10.1134/S1063780X15080103