Intense terahertz radiation from relativistic laser–plasma interactions

G Q Liao, Y T Li, C Li, H Liu, Y H Zhang, W M Jiang, X H Yuan, J Nilsen, T Ozaki, W M Wang, Z M Sheng, D Neely, P. McKenna, J Zhang

Research output: Contribution to journalSpecial issuepeer-review

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The development of tabletop intense terahertz (THz) radiation sources is extremely important for THz science and applications. This paper presents our measurements of intense THz radiation from relativistic laser–plasma interactions under different experimental conditions. Several THz generation mechanisms have been proposed and investigated, including coherent transition radiation (CTR) emitted by fast electrons from the target rear surface, transient current radiation at the front of the target, and mode conversion from electron plasma waves (EPWs) to THz waves. The results indicate that relativistic laser plasma is a promising driver of intense THz radiation sources.
Original languageEnglish
Article number014039
Number of pages7
JournalPlasma Physics and Controlled Fusion
Issue number014039
Early online date2 Nov 2016
Publication statusPublished - 31 Jan 2017


  • intense terahertz radiation
  • laser–plasma interactions
  • THz generation mechanisms
  • coherent transition radiation
  • electron plasma waves
  • transient current
  • mode conversion


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