Soft X-Ray free-electron laser with a laser undulator Academic Article uri icon


  • We discuss the possibility of building a free-electron laser in the spectral region of tens of nanometers using, a high-power laser pulse as the undulator. Requirements on the electron beam emittance brightness, and energy spread are derived, The possibility of operation at the quantum limit is considered. The reduction of the gain due to diffraction of the undulator pulse (the variable mass-shift effect) is investigated, and several as in which it could be overcome are suggested. Examples are presented showing that the device is feasible with moderate advances in current electron injector technology. Such a device would not require a large accelerator for high electron energies, nor a long wiggler made of permanent magnets. Copyright 1987 by The Institute of Electrical and Electronics Engineers, Inc.

published proceedings

  • IEEE Journal of Quantum Electronics

altmetric score

  • 9

author list (cited authors)

  • Gea-Banacloche, J., Moore, G., Schlicher, R., Scully, M., & Walther, H.

citation count

  • 73

complete list of authors

  • Gea-Banacloche, J||Moore, G||Schlicher, R||Scully, M||Walther, H

publication date

  • September 1987