Published December 23, 2011 | Version v1
Journal article

Tunable Radiation Source by Coupling Laser-Plasma-Generated Electrons to a Periodic Structure

  • 1. Photon Pioneers Center, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871 (Japan)
  • 2. Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871 (Japan)
  • 3. School of Science, National University of Defense Technology, Changsha 410073 (China)
  • 4. National Key Laboratory of Laser Fusion, CAEP, Mianyang 621900 (China)
  • 5. Institute for Theoretical Physics I, Ruhr University, Bochum D-44780 (Germany)
  • 6. Institute for Fusion Theory and Simulation, Zhejiang University, Hangzhou 310027 (China)
  • 7. Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, CAS, Beijing 100080 (China)
  • 8. Key Laboratory for Laser Plasmas (Ministry of Education) and Department of Physics, Shanghai Jiao Tong University, Shanghai 200240 (China)
  • 9. Institute of Laser Engineering, Osaka University, 2-6 Yamada-oka, Suita, Osaka, 565-0871 (Japan)

Description

Near-infrared radiation around 1000 nm generated from the interaction of a high-density MeV electron beam, obtained by impinging an intense ultrashort laser pulse on a solid target, with a metal grating is observed experimentally. Theoretical modeling and particle-in-cell simulation suggest that the radiation is caused by the Smith-Purcell mechanism. The results here indicate that tunable terahertz radiation with tens GV/m field strength can be achieved by using appropriate grating parameters.

Additional details

Publishing Information

Journal Title
Physical Review Letters
Journal Volume
107
Journal Issue
26
Journal Page Range
p. 265003-265003.5
ISSN
0031-9007
CODEN
PRLTAO

Optional Information

Notes
(c) 2011 American Institute of Physics