Dynamics of the Photo-Detached Electron Wave Propagation near a Metal Surface

De-Hua Wang ； Shao-Sheng Li ； Tian-Qi Liu ； Dong-Qi Liang

《Chinese Journal of Physics》 51卷1期 (2013/02) Pp. 126-136

https://doi.org/10.6122/CJP.51.126

並列摘要

Based on the semiclassical open-orbit theory, the dynamics of photo-detached electron wave propagation near a metal surface has been studied. Formulas for the electron probability density and current density have been derived. The calculation results show that the interference between two open-orbits passing through a given spatial point leads to an oscillation in the probability density and current density distributions. With an increase of the electron energy, the electron current density distributions spread out more widely, but the oscillation in the current density distribution decreases. At a given point, the oscillation frequency increases but the oscillation amplitude decreases as the electron energy is increased to the critical energy, which is consistent with the oscillatory photodetachment cross section of the detached electron near a metal surface. We hope that our studies would serve as a guide for future photodetachment microscopy experiments of negative ions near surfaces.

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