Coherence enhanced transient lasing in XUV regime

P. K. Jha, A. A. Svidzinsky, M. O. Scully

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


We report the effect of a coherent drive on transient lasing in three-level λ and ξ configurations (c↔a↔b). We show that the presence of a resonant coherent drive on the a↔c optical transition can yield an order of magnitude enhancement of the output laser energy on a a→b extreme ultraviolet (XUV) or X-ray transition than with no coherent drive. We demonstrate the crucial role of coherence ρac for the laser power enhancement. Contrary to the forward direction (with respect to the pump laser), where forward gain can be enhanced for some choice of the drive Rabi frequency ω c, coherent drive on the ac transition always suppresses the backward gain.

Original languageEnglish (US)
Pages (from-to)368-376
Number of pages9
JournalLaser Physics Letters
Issue number5
StatePublished - 2012
Externally publishedYes


  • Lasing
  • XUV regime

ASJC Scopus subject areas

  • Instrumentation
  • Physics and Astronomy (miscellaneous)


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