Experimental study of the plasma resonance in a planar surface wave plasma

Citation
Tj. Wu et al., Experimental study of the plasma resonance in a planar surface wave plasma, PHYS PLASMA, 8(7), 2001, pp. 3195-3198
Citations number
18
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
PHYSICS OF PLASMAS
ISSN journal
1070-664X → ACNP
Volume
8
Issue
7
Year of publication
2001
Pages
3195 - 3198
Database
ISI
SICI code
1070-664X(200107)8:7<3195:ESOTPR>2.0.ZU;2-0
Abstract
In this study, the plasma resonance in a surface wave sustained plasma was investigated. Surface wave discharges have been successfully generated by a microwave planar vane-type slow wave structure. Experimental results clear ly demonstrated that the amplitude of the electric field of the microwave a lways became a local maximum in the position where the plasma density was e qual to the same value. When the operating gas pressure and the input micro wave power were varied to change the plasma density profile, the location o f the maximum of the electric field was found to shift in compliance with t he plasma density profile. Meanwhile, the peak of the resonance response wa s found to be proportional to the plasma density gradient while the spatial width of plasma resonance was inversely proportional to the plasma density gradient. These results were qualitatively in accordance with the theory. (C) 2001 American Institute of Physics.