Free-electron laser without inversion: gain optimization and implementation scheme. Academic Article uri icon


  • We consider a scheme of two noncollinear wigglers with an intermediate magnetic drift region, constituting a free-electron laser without inversion (FELWI). Two mechanisms of phase shifts in the drift region between the wigglers owing to a series of magnetic lenses can give rise to FELWI: velocity- and angle-dependent shifts. An appropriate combination of these shifts is shown to provide the conditions for amplification without inversion. The phase shifts optimizing the gain are found. A specific scheme for the drift region is suggested.

published proceedings

  • Phys Rev Lett

author list (cited authors)

  • Artemiev, A. I., Fedorov, M. V., Rostovtsev, Y. V., Kurizki, G., & Scully, M. O.

citation count

  • 14

complete list of authors

  • Artemiev, AI||Fedorov, MV||Rostovtsev, YV||Kurizki, G||Scully, MO

publication date

  • November 2000