【摘要】 应用非微扰散射理论并考虑自发辐射 ,研究了阈上电离过程中光电子的角分布。由于自发辐射的影响 ,电子的角分布具有精细结构 ,成功地解释了Nandor等人的实验观测。更多还原

【Abstract】 Using the nonperturbative scattering theory developed for multiphoton ionization with the inclusion of spontaneous emission, the angular differential rates for above-threshold ionization (ATI) are obtained. Besides the main lobe structure, our numerical calculations reproduce the fine structures in the angular distribution of ATI peaks observed by Nandor et al.. The fine structures are attributed to the spontaneous emissions when the photoelectron exits the laser field.更多还原