Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE
Lasing without population inversion
Wojciech Gawlik
Published Sep 24, 1993• 2 citations
Abstract
The paper reviews various schemes of lasing without population inversion with particular emphasis on these which seem to be most promising from the practical point of view. It is shown that in some cases one can attribute the lasing to the population inversion in an appropriate reference frame.