  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.
