Excitation of surface plasma waves over corrugated slow-wave structure |
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Authors: | Ashim P Jain Jetendra Parashar |
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Institution: | (1) Department of Applied Physics, Samrat Ashok Technological Institute, 464 001 Vidisha, India |
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Abstract: | 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. |
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Keywords: | Surface plasma waves slow-wave structures plasma discharge corrugated waveguide |
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