众所周知，以铜蒸气激光器为代表的脉冲放电激励的金属蒸气激光器件属于通常的三能级系统，其激光上能级应是与基态有最强光学联系的共振态，而激光下能级则是与基态光学跃迁禁戒的亚稳态，在玻恩近似得以成立的条件下，同一能级的电子碰撞激发速率与自发跃迁速率正关联，因此 It is well-known that the pulse discharge excited metal vapor laser device represented by copper vapor laser belongs to the usual three-level system. The laser upper level should be the resonance state with the strongest optical connection with the ground state, while the laser lower level is The metastability of the forbidden band in the optical transition with the ground state is positively related to the rate of spontaneous transition due to the electron collision at the same energy level under the condition that the Born approximation is established