Chinese Optics Letters, 2011, 9 (4): 040202, Published Online: Mar. 30, 2011
Analysis of the time-domain spectrum of hydrogen in electric field near helium surface Download: 513次
自相关函数 激光脉冲 波包 弹性碰撞 020.0020 Atomic and molecular physics 020.1670 Coherent optical effects 300.6500 Spectroscopy, time-resolved 350.6670 Surface photochemistry
Abstract
The Ryderberg electronic wave packet dynamics of hydrogen atom near helium surface in an electric field is investigated using the semiclassical method. The autocorrelation function is calculated when the photoionized electron is excited by a short laser pulse for different atom-surface separations. The results show that new recurrences appear because of the helium surface, and the number of recurrent peaks increases with the decrease in atom-surface distance. The new feature is ascribed to the bifurcation of new closed orbits in the classical dynamics of the photoionized electron. Therefore, surface properties have a significant effect on the spectrum of nearby atoms or ions.
Xiaoqing Gong, Guangcan Yang. Analysis of the time-domain spectrum of hydrogen in electric field near helium surface[J]. Chinese Optics Letters, 2011, 9(4): 040202.