铊原子激光共振电离研究

用 N d:YAG激光及其泵浦的染料激光进行铊原子三步共振电离。求解了非饱和共振过程速率方程 ,计算出基态和激发态吸收截面 ,给出电离效率分别与激发电离速率以及作用时间的变化关系 ,得到饱和激发电离的流量条件和通量条件。

Study Laser Resonance Ionization for Thallium Atoms

In this paper, we study the Thallium atoms resonance ionization with Nd:YAG Laser and it's pumped dye laser. The rate equations for a three level system are solved in cases of unsaturation resonanc process. We calculate the absorption cross section for initial state and excitant state, gained that the ionization efficiency relating to rate of excitation and ionization and the interaction time respectively, and obtained the condition on the photon flux and fluence for saturated excitation and ionization.