碰撞对钠分子菱形能级系统中高位能能布居的影响  

Collisional In fluence on Population of High-lying Statein Na_2 Rhomb-Type Level-System

作　　者：王蔚生[1] 邓乐[1] 孙真荣[1] 丁良恩[1] 王祖赓[1] 

机构地区：[1]华东师范大学物理系

出　　处：《量子光学学报》2000年第3期113-116,共4页Journal of Quantum Optics

基　　金：国家自然科学基金资助项目 !(19734003)

摘　　要：在实验室上研究了碰撞过程对钠分子菱形能级系统高位能级布居的影响。无多普勒加宽的洛仑兹尖峰随缓冲气体压力的增大很快消失 ;加入少量缓冲气体 ,碰撞激发过程对以多普勒宽度为特征的信号有一定的增强作用 ,但加入过量缓冲气体会由于消布居作用使信号减弱。?Experimental research on collisional influence on population of high-lying state in Na 2 rhomb-type level-system has been reported. Doppler-free Lorentz peak will vanish rapidly via the increasing of buffer gas pressure. Injection little buffer gas to the cell will enhance the Doppler-pedestal signal because of collisional excitation, but too much buffer gas will decrease the signal because of population eliminating effect. The explanation in the light of rate-function has been given.

关 键 词：碰撞 菱形能级系统 钠分子 高位能级布局 

分 类 号：O561[理学—原子与分子物理] O431[理学—物理]