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Title: Isolated few-cycle radiation from chirped-pulse compression of a superradiant free-electron laser

When a short electron bunch traverses an undulator to radiate a wavelength longer than the bunch length, intense superradiance from the electron bunch can quickly deplete the electron’s kinetic energy and lead to generation of an isolated chirped radiation pulse. Here, we develop a theory to describe this novel chirped pulse radiation in a superradiant free-electron laser and show the opportunity to generate isolated few-cycle high-power radiation through chirped-pulse compression after the undulator. The theory is completely characterized by how fast the electron energy is depleted for a given length of an undulator. We further present two design examples at the THz and extreme-ultraviolet wavelengths and numerically generate isolated three- and nine-cycle radiation pulses, respectively.
 [1] ;  [2] ;  [3] ;  [4]
  1. Institute of Photonics Technologies, Hsinchu (Taiwan); National Tsinghua Univ., Hsinchu (Taiwan)
  2. SLAC National Accelerator Laboratory, Menlo Park, CA (United States)
  3. National Synchrotron Radiation Research Center, Hsinchu (Taiwan)
  4. Institute of Photonics Technologies, Hsinchu (Taiwan)
Publication Date:
OSTI Identifier:
Grant/Contract Number:
FWP-2013-SLAC-100164; NSC 102-2112-M-007-002-MY3
Published Article
Journal Name:
Physical Review Special Topics. Accelerators and Beams
Additional Journal Information:
Journal Volume: 18; Journal Issue: 8; Journal ID: ISSN 1098-4402
American Physical Society (APS)
Research Org:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org:
USDOE Office of Science (SC)
Country of Publication:
United States