フォトカソード高周波電子銃ライナックからの超短パルス電子ビームを用いたテラヘルツ波発生 [in Japanese] Generation of Terahertz-waves using Ultrashort Electron Beams from a Photocathode Radio-frequency Gun Linac [in Japanese]
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Ultrashort, e.g., picosecond or femtosecond, electron beams are useful for electro-magnetic radiation production in terahertz (THz) range due to the inverse of 1 ps bunch length corresponding to the frequency of 1 THz. The electron beams were generated by a photocathode radio-frequency (RF) gun linac. Electron beams with energy of ∼4 MeV at the RF gun exit were accelerated up to ∼30 MeV in a linac. The accelerated electron beams were compressed by a magnetic bunch compressor, resulting in femtosecond pulse width. THz radiation of the order on 0.1 THz based on coherent Cherenkov radiation (CCR) using hollow dielectric tubes and Smith-Purcell radiation (SPR) using a metallic grating or metasurface were reported.
- IEEJ Transactions on Electronics, Information and Systems
IEEJ Transactions on Electronics, Information and Systems 134(4), 502-509, 2014
The Institute of Electrical Engineers of Japan