Excitation of surface plasma waves over corrugated slow-wave structure

A microwave propagating along vacuum—dielectric—plasma interface excites surface plasma wave (SPW). A periodic slow-wave structure placed over dielectric slows down the SPW. The phase velocity of slow SPW is sensitive to height, periodicity, number of periods, thickness and the separation between di...

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Bibliographic Details
Published in:Pramāṇa 2005-08, Vol.65 (2), p.311-321
Main Authors: Jain, Ashim P., Parashar, Jetendra
Format: Article
Language:English
Subjects:
Dielectrics
Phase velocity
Plasma
Plasma waves
Separation
Wave propagation
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Summary:A microwave propagating along vacuum—dielectric—plasma interface excites surface plasma wave (SPW). A periodic slow-wave structure placed over dielectric slows down the SPW. The phase velocity of slow SPW is sensitive to height, periodicity, number of periods, thickness and the separation between dielectric and slow-wave structure. These slow SPW can couple the microwave energy to the plasma and can sustain the discharge. The efficiency of the power coupling is few per cent and is sensitive to separation between dielectric and slow-wave structure.
ISSN:0304-4289
0973-7111
DOI:10.1007/BF02898619