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Applied Physics Letters / Volume 98 / Issue 15 / PLASMAS AND ELECTRICAL DISCHARGES

Appl. Phys. Lett. 98, 151501 (2011); http://dx.doi.org/10.1063/1.3577610 (3 pages)

Anisotropy induced wave birefringence in bounded supercritical plasma confined in a multicusp magnetic field

Indranuj Dey and Sudeep Bhattacharjee

Department of Physics, Indian Institute of Technology Kanpur, Kanpur 208016, India

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(Received 25 November 2010; accepted 23 March 2011; published online 11 April 2011)

Laboratory observation of rotation of the polarization axis (θc ∼ 20°–40° with respect to vacuum) of a penetrating electromagnetic wave through a bounded supercritical plasma (plasma frequency ωp>wave frequency ω), confined in a multicusp magnetic field is reported. Birefringence of the radial and polar wave electric field components (Er and Eθ) has been identified as the cause for the rotation, similar to a magneto-optic medium, however, with distinct differences owing to the presence of wave induced resonances. Numerical simulation results obtained by solving the Maxwell’s equations by incorporating the plasma and magnetostatic field inhomogeneities within a conducting boundary shows a reasonable agreement with the experimental results.

© 2011 American Institute of Physics

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KEYWORDS and PACS

Keywords

birefringence, electromagnetic wave polarisation, Maxwell equations, plasma confinement, plasma electromagnetic wave propagation, plasma magnetohydrodynamics, plasma simulation

PACS

  • 52.40.Db

    Electromagnetic (nonlaser) radiation interactions with plasma

  • 52.30.Cv

    Magnetohydrodynamics (including electron magnetohydrodynamics)

  • 52.55.Lf

    Field-reversed configurations, rotamaks, astrons, ion rings, magnetized target fusion, and cusps

  • 52.65.-y

    Plasma simulation

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3577610

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.
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    I. Dey and S. Bhattacharjee, Phys. Plasmas 18, 022101 (2011)PHPAEN000018000002022101000001.

    K. Rypdal, A. Fredriksen, O. M. Olsen, and K. G. Hellblom, Phys. Plasmas 4, 1468 (1997)PHPAEN000004000005001468000001.


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