Gain without inversion in the frequency up-conversion regime Academic Article uri icon


  • We analyze the general conditions and limitations for the realization of frequency up-conversion via lasing without inversion (LWI). Based on this analysis we propose a class of schemes in which LWI can be achieved via optical- or microwave-frequency driving on a weakly allowed transition. A noninversion amplification process based on this system is studied with particular emphasis on propagation effects and Doppler broadening. Amplification of both monochromatic and bichromatic fields is considered and a possible implementation in realistic atoms and ions is discussed. 1998 The American Physical Society.

published proceedings


author list (cited authors)

  • Yelin, S. F., Lukin, M. D., Scully, M. O., & Mandel, P.

citation count

  • 29

complete list of authors

  • Yelin, SF||Lukin, MD||Scully, MO||Mandel, P

publication date

  • May 1998