Spatially Modulated Emission of ECR Plasmas in Helium

Author

Durocher-Jean, A. ; Stafford, Luc ; Rojo, M. ; Dap, S. ; Makasheva, Kremena ; Clergereaux, Richard

Author_Institution

Dept. of Phys., Univ. de Montreal, Montral, QC, Canada

Volume

42

Issue

10

fYear

2014

fDate

Oct. 2014

Firstpage

2762

Lastpage

2763

Abstract

Space modulation of the optical emission is observed in electron cyclotron resonance plasmas depending on the operating pressure. In contrast with low-pressure condition, where the plasma emission highlights a fairly homogeneous spatial structure, a spatial modulation appeared as the pressure increased: both color and intensity modulations were observed. This phenomenon is attributed to the establishment of a standing wave that modulate the plasma characteristics.

Keywords

helium; optical modulation; plasma collision processes; plasma diagnostics; plasma radiofrequency heating; plasma waves; ECR plasmas; He; color modulations; electron cyclotron resonance plasmas; helium; homogeneous spatial structure; low-pressure condition; plasma emission; spatially modulated optical emission; standing wave; Electromagnetic heating; Helium; Inductors; Magnetic resonance; Microwave antennas; Modulation; Plasmas; Magnetic confinement; microwave plasma sources; plasma-waves interactions;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/TPS.2014.2337837

Filename

6863704