Transition metal dichalcogenides (TMDCs) combine both strong light-matter-interaction and strong Coulomb-interaction for the formation of optically excitable excitons. Through radiative feedback control, a mechanism to control the linewidth can be applied, which modifies optical transition spectra. Here, we extend these investigations to the absorption spectra of TMDCs in a variety of geometries with respect to non-Markovian exciton-phonon-scattering contributions. Our approach is based on the self consistent solution of the microscopic Bloch equations and the macroscopic solution of the wave equation. We discuss the formation of a phonon sideband for MoSe2 embedded in SiO2, and two setups for enhancing or suppressing the phonon sideband in the spectrum.
@article{arxiv.2302.06338,
title = {Suppression and amplification of phonon sidebands in transition metal dichalcogenides by optical feedback},
author = {Thomas Tenzler and Andreas Knorr and Manuel Katzer},
journal= {arXiv preprint arXiv:2302.06338},
year = {2024}
}