Chemical laser is characteristically energized by an exoergic chemical reaction which produces the nece ssary population inversion of lasing species.

学激光器是以学应提供源, 并且以学应产生粒子数转为基础的。

The numerical results show that the lasing threshold of an eigenmode depends on the EGDF, different eigenmode has different value of EGDF.

有益分布因子描述了光子晶体中益介质的空间分布特性。