Escape of photodetached electrons from a nanocircular microcavity

Abstract

This paper investigates the escape of photodetached electron from a nanocircular microcavity on the basis of the semiclassical theory. The escaped orbit of the photodetached electron is investigated and the escaped probability density of this system is derived and calculated. The calculation results suggest that oscillating structures appear in the escaped probability density, which are caused by the interference effects of the electron waves traveling along different escaped trajectories. Our study also suggests that the escaped probability density of the photodetached electron depends on the laser polarization sensitively. To show the correspondence between the escaped probability density and the detached electron’s escaped orbits clearly, we calculate the Fourier transform of the semiclassical wave function and find each peak corresponds to the length of one detached electron’s orbit. We hope that our results will be useful in understanding the escape and transport process of particles through semiconductor microjunctions.