1 research outputs found
Coherence Enhanced Transient Lasing in XUV Regime
We report the effect of a coherent drive on transient lasing in three-level
and configurations (). We
show that the presence of a resonant coherent drive on the
optical transition can yield an order of magnitude enhancement of the output
laser energy on a XUV or X-ray transition than with no
coherent drive. We demonstrate the crucial role of coherence for
the laser power enhancement. Contrary to the forward direction (with respect to
the pump), where forward gain can be enhanced for some choice of the drive Rabi
frequency , coherent drive on the transition always suppresses
the backward gain.Comment: 8 pages, 11 figure