Work

Suppression and amplification of phonon sidebands in transition metal dichalcogenides by optical feedback

Year: 2024

Type: article

Abstract: 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 ${\mathrm{MoSe}}_{2}$ embedded in ${\mathrm{SiO}}_{2}$, and two setups for enhancing or suppressing the phonon sideband in the spectrum.

Source: Physical review. B./Physical review. B

DOI: 10.1103/physrevb.109.085308

Authors: Thomas Tenzler, Andreas Knorr, Manuel Katzer

Institution: Technische Universität Berlin

Language: English

Topic: 2D Materials and Applications

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: green

Funder: Deutsche Forschungsgemeinschaft

Awards: G1372011745, SFB 910: Kontrolle selbstorganisierender nichtlinearer Systeme: Theoretische Methoden und Anwendungskonzepte, G5363326558, Ultraschnelle Dynamik in atomar dünnen Übergangsmetalldichalkogeniden im Magnetfeld, SFB 951: Hybrid Inorganic/Organic Systems (HIOS) for OptoElectronics