Volume 81, Number 1, January 2008
|Number of page(s)||5|
|Section||Physics of Gases, Plasmas and Electric Discharges|
|Published online||19 November 2007|
High-frequency harmonic generation in a toroidal magnetized laboratory plasma and detection of plasma turbulence
Laboratoire PIIM, CNRS et Université de Provence - F-13397 Marseille Cedex 20, France
2 Département de Physique, Faculté des Sciences - BP 2121, 93000 Tétouan, Maroc
Accepted: 29 October 2007
We show for the first time experimentally that plasma turbulence can be detected easily when an electromagnetic extraordinary wave launched from the inner side of a toroidal magnetized plasma reaches a turbulent resonance layer. The second-harmonic wave generated inside the resonance layer is detected from outside the magnetized plasma and its power spectrum is analyzed. This new technique could be developed for distant probing of plasma turbulence.
PACS: 52.35.Mw – Nonlinear phenomena: waves, wave propagation, and other interactions (including parametric effects, mode coupling, ponderomotive effects, etc.) / 52.35.Hr – Electromagnetic waves (e.g., electron-cyclotron, Whistler, Bernstein, upper hybrid, lower hybrid) / 52.70.-m – Plasma diagnostic techniques and instrumentation
© EPLA, 2008
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