Journal article

Power enhancement via an ion-channel in a Raman free-electron laser

  • Huang, Xiaoli School of Electrical Engineering and Electronic Information, Xihua University, Chengdu, China - Department of Physics, University of Fribourg, Switzerland
  • Zhang, Shi-Chang School of Information Science and Technology, Southwest Jiaotong University, Chengdu, China
Published in:
  • Laser Physics. - 2018, vol. 28, no. 9, p. 095002
English As a high-power and high-efficiency coherent radiation source, the free-electron laser extends to two unique spectra: the region in the ultra-violet, x- and -rays, and the range in the millimeter- and terahertz-waves. Based on credible simulations, it is shown that the nonlinear power of a Raman free-electron laser in a millimeter wave range goes up and gets an increase of at least 9% when an ion-channel is applied to the beam-wave interaction chamber. A physical explanation is that the ion-channel weakens the velocities spread over the electron beam and, therefore, improves the electron-beam transportation quality and the beam-wave interaction
Faculté des sciences et de médecine
Département de Physique
  • English
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