The magnetopolaron effect in light reflection and absorption by a wide quantum

TL;DR

This paper models how a wide quantum well's light reflection and absorption spectra are affected by the magnetopolaron effect, especially considering the quantum well's width and magnetic field influence on electron-hole pair energy levels.

Contribution

It introduces a theoretical framework for analyzing light spectra in wide quantum wells considering the magnetopolaron effect and level splitting due to magnetic fields.

Findings

Reflection and absorption depend on quantum well width.

The theory applies at any ratio of radiative to non-radiative broadening.

Spectral features are influenced by magnetopolaron-induced level splitting.

Abstract

Light reflection and absorption spectra by a semiconductor quantum well (QW), which width is comparable to a light wave length of stimulating radiation, are calculated. A resonance with two close located exited levels is considered. These levels can arise due to splitting of an energy level of an electron-hole pair (EHP) due to magnetopolaron effect, if the QW is in a quantizing magnetic field directed perpendicularly to the QW plane. It is shown that unlike a case of narrow QWs light reflection and absorption depend on a QW width $d$. The theory is applicable at any ratio of radiative and non-radiative broadenings of electronic excitations.