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Terahertz surface plasmon excitation over a bismuth thin film by an electron beam |
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| Authors: | J. Parashar S. Chauhan P.K. Purohit V.K. Agrawal |
| Affiliation: | 1. Department of Applied Physics, Samrat Ashok Technological Institute, Vidisha 464001, MP, India;2. Department of Applied Science, National Institute of Technical Teachers Training and Research, Bhopal 462 002, MP, India |
| Abstract: | The excitation of terahertz surface plasma wave (SPW) over bismuth thin film-glass structure by a parallel propagating electron beam is studied. The SPW phase velocity is sensitive to the thickness of bismuth film and it is driven via the Cerenkov resonance. The growth rate for terahertz radiation generation by an electron beam is obtained under small signal approximation. |
| Keywords: | A. Thin films D. Optical properties |
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