摘要
从非平衡态热力学角度讨论激光产生的基本原理 ,其中还解释了所谓负温度意味着非平衡态熵减少 。
States the fundament of laser generation based on the three thermodynamic laws.It also explains that the so called“negative temperature”means the entropy in the nonequlibrium state decreases so that the system tends to be orderly.
出处
《河北师范大学学报（自然科学版）》
CAS
2000年第2期209-210,共2页
Journal of Hebei Normal University：Natural Science
关键词
激光
熵
受激辐射
粒子数反转
非平衡态热力学
laser
entropy
nonequilibrium state
stimulated radiation
population inversion
