SOFT X-RAY FREE-ELECTRON LASER WITH AN ELECTROMAGNETIC WIGGLER. Conference Paper uri icon

abstract

  • The possibility of building a free-electron laser (FEL) operating in the 100-500-angstrom range is studied. The gain obtainable when emittance is taken into account, and ways by which one might overcome the mass-shift problem, are pointed out. The mass-shift problem consists of the slowing of the electrons near the focus of the pump laser. This becomes important when the power in the pump pulse exceeds 10**9 W. This effect reduces the gain but might be overcome by chirping the pump pulse or sweeping the beam waist at the speed of the electrons by self-focusing techniques. Numerical examples of CO//2 or Nd pump lasers show that soft X-ray lasing should be possible even if the mass-shift problem is not alleviated.

author list (cited authors)

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

complete list of authors

  • Gea-Banacloche, J||Moore, GT||Scully, MO||Schlicher, R||Walther, H

publication date

  • January 1987