Electrooptical Properties of Rydberg Excitons

TL;DR

This paper presents a method to compute electrooptical functions involving Rydberg excitons, accounting for coherence effects, and validates results with experimental data for Cu$_2$O crystals.

Contribution

It introduces a computational approach for electrooptical properties of Rydberg excitons including coherence effects and applies it to real materials.

Findings

Good agreement with experimental data

Resonance displacement depends on state number and electric field

Method accurately models absorption, reflection, and transmission

Abstract

We show how to compute the electrooptical functions (absorption, reflection, and transmission) when Rydberg Excitons appear, including the effect of the coherence between the electron-hole pair and the electromagnetic field. With the use of Real Density Matrix Approach numerical calculations applied for Cu$_2$0 crystal are performed. We also examine in detail and explain the dependence of the resonance displacement on the state number and applied electric field strength. We report a good agreement with recently published experimental data.