The influence of interface modifier on photodetachment of negative ions in an electric field near a metal surface |
| |
| Authors: | Huang Kai-Yun and Wang De-Hua |
| |
| Affiliation: | School of Physics, Ludong University, Yantai 264039, China |
| |
| Abstract: | Based on closed-orbit theory, the influence of an interface modifier on the photodetachment of H - in an electric field near a metal surface is studied. It is demonstrated that the interface strengthens the oscillations in the photodetachment cross section. However, when the electric field environments are different, the strengthening oscillations are caused by different sources. When the electric field direction is upward, the interface enhances the oscillations by shortening the period and the action of the closed orbit. When the electric field direction is downward, the interface strengthens the oscillations either by extending the coherent energy range or by increasing the total number of the closed orbits. We hope that our results will be conducive to the understanding of the photodetachment process of negative ions near interfaces, cavities and ion traps. |
| |
| Keywords: | photodetachment interface closed orbit theory |
| 本文献已被 维普 等数据库收录！ |
| 点击此处可从《中国物理 B》浏览原始摘要信息 |
|
点击此处可从《中国物理 B》下载免费的PDF全文 |
|
