Radiation-induced re-emission in a 2D electron system

TL;DR

This paper presents a theoretical analysis of radiation re-emission in 2D electron systems, explaining experimental observations through a model where electrons oscillate under radiation and re-emit part of it, revealing a strong correlation with radiation-driven current.

Contribution

It introduces a radiation-driven electron orbit model to explain radiation re-emission phenomena in 2D electron systems, linking oscillating electron behavior to observed re-emission.

Findings

Electrons behave as oscillating dipoles re-emitting radiation

Strong correlation between re-emitted radiation and radiation-driven current

Model explains experimental results simply and effectively

Abstract

Recent experiments on re-emission of radiation and magnetotransport in photoexcited two-dimensional electron systems are theoretically analyzed. These experiments have concluded that there exists a strong correlation between the re-emitted radiation and the radiation-driven current through the sample. We study these remarkable experimental results using the radiationdriven electron orbit model. According to it, two-dimensional electrons under a magnetic field move back and forth driven by radiation. Therefore, they behave as oscillating dipoles re-emitting part of the radiation previously absorbed. Then, this theory would explain in a simple way the experimental results.