Photoinduced desorption of molecules from metal surfaces using femtosecond pulses: A model dynamical study

被引:13
作者
Chakrabarti, N
Sathyamurthy, N
Gadzuk, JW [1 ]
机构
[1] Indian Inst Technol, Dept Chem, Kanpur 208016, Uttar Pradesh, India
[2] NIST, Gaithersburg, MD 20899 USA
关键词
D O I
10.1021/jp980043q
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The influence of a femtosecond laser pulse on an adsorbate molecule-metal surface system is investigated by considering a time-dependent coupling between the ground-and excited-state potential energy curves using the time-dependent quantum mechanical wave packet approach. It is shown that the probability of desorption is strongly dependent on the duration of the coupling and the image-charge attraction and that it increases with increase in vibrational excitation of the metal-adsorbate bond.
引用
收藏
页码:4154 / 4157
页数:4
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