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

激光器是以释能应提供能源, 并且以应产生粒子数转为基。

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

有效增益分布因子描述了光子晶体中增益介质空间分布特性。