Atomic resonance behavior in laser-induced Rb atom desorption - the effect of ambient gas atoms and molecules

作者：Zhao K; Wu Z^*

来源：Physics Letters A, 2002, 299(1): 73-78.

We report an observation that in a typical optical pumping cell containing Rb metal and 150 Torr N-2 gas, a cw laser beam of a few tens of mW and beam size 5.5 mm(2) can desorb Rb films on cell surfaces when the laser is tuned to the Rb D-1 line. The frequency dependence of the Rb desorption rate displays atomic resonance behavior. The desorption is suggested to be mediated by the ambient gas atoms (Rb) and molecules (N-2). The phenomenon was used to provide evidence for the existence of thin Rb films on seemingly clear cell surfaces.

• 出版日期2002-6-24
• 单位rutgers