Development of Terahertz Radiation Sources Using the LEENA Compact Linear Accelerator

• Published in: Electronics and communications in Japan Vol. 99; no. 1; pp. 12 - 21
• Main Authors: HASHIMOTO, SATOSHI, CHIN, SAKAYA, KOBAYASHI, KARIN, KAWATA, KENJI, LIN, DAZHI, AMANO, SHO, MIYAMOTO, SHUJI
• Format: Journal Article
• Language: English
• Published: Blackwell Publishing Ltd 01-01-2016
• Subjects: Coherent radiation; electron beam; Linear accelerators; Mathematical models; Radiation sources; Relativistic electron beams; Smith-Purcell radiation; Synchrotron radiation; terahertz source
• ISSN: 1942-9533; 1942-9541
• DOI: 10.1002/ecj.11744

SUMMARY
Tunable and high‐power terahertz radiation sources using relativistic electron beams from a compact linear accelerator (LEENA) are under development. Synchrotron radiation and Smith‐Purcell radiation in the THz region were successfully measured. The coherent radiation power from an electron bunch shorter than 1 ps is estimated theoretically to be about 107 larger than the incoherent power. Recent experimental results on the generation of THz radiation and numerical results on high‐power coherent radiation from a short electron bunch are reported.