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

化学激光器能化学应提供能源, 并且化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.

有效布因子描述了光子晶体中介质的空间布特性。