Escape of photo-detached electron from an annular nanomicrocavity

Abstract

The escaped probability density of the photo-detached electron in an annular nanomicrocavity shows strong oscillations as a function of the length of the escape orbits. We present a semiclassical theory that describes theses oscillations in terms of bundles of escape orbits. Due to the interference effects of the electron waves travelling along different escaped orbits, oscillatory structures appear in the escaped probability density. In addition, the calculation results suggest that the escaped probability density of the photo-detached electron is not only related to the inner radius of the annular microcavity, but also related to the laser polarization. In order to show the correspondence between the escaped probability density and the detached electron’s escaped orbits clearly, we calculate the Fourier transformed semiclassical wave function and find that the peak positions agree well with the length of the detached electron’s orbits. We hope that our results will be useful in understanding the escape and propagation process of particles through semiconductor microjunctions or ballistic microstructure.

Keywords:

• escape probability density
• annular nanomicrocavity
• semiclassical theory

Additional information

Funding

Funding. This work was supported by the National Natural Science Foundation of China [grant number 11374133], [grant number 11074104], and a Project of Shandong Province Higher Educational Science and Technology Program of China [grant number J13LJ04].