Gain components in the Autler-Townes doublet from quantum interferences in decay channels Academic Article uri icon


  • We consider nondegenerate pump-probe spectroscopy of [Formula Presented] systems under conditions such that interference among decay channels is important. We demonstrate how this interference can result in new gain features instead of the usual absorption features. We relate this gain to the existence of a new vacuum induced quasi-trapped-state. We further show how this also results in a large refractive index with low absorption. 2000 The American Physical Society.

published proceedings

  • Physical Review A

author list (cited authors)

  • Menon, S., & Agarwal, G. S.

citation count

  • 125

complete list of authors

  • Menon, Sunish||Agarwal, GS

publication date

  • January 2000