Doppler broadening and collisional relaxation effects in a lasing-without-inversion experiment. Academic Article uri icon


  • In the early experiments on optical pumping and coherent population trapping (''dark resonances'') increasing buffer gas pressure enhances the effect. In our recent lasing-without-inversion experiments, based on population trapping, we find the opposite behavior, namely, decreasing atomic coherence with increasing buffer gas pressure. We provide a theoretical explanation of this result in agreement with experiment. 1995 The American Physical Society.

published proceedings

  • Phys Rev A

author list (cited authors)

  • Graf, M., Arimondo, E., Fry, E. S., Nikonov, D. E., Padmabandu, G. G., Scully, M. O., & Zhu, S. Y.

citation count

  • 24

complete list of authors

  • Graf, M||Arimondo, E||Fry, ES||Nikonov, DE||Padmabandu, GG||Scully, MO||Zhu, SY

publication date

  • May 1995