@inproceedings{d8a878a596c64062ac16a87c26118eb4,
title = "Influence of Coulomb correlations on high harmonic generation in monolayer TMDCs",
abstract = "We use microscopic many-body models based on first principle density functional theory to investigate the high harmonic generation (HHG) in monolayer transition metal dichalcogenides (ML-TMDCs) at the example of MoS2. A two-dimensional bandstructure model is utilized that allows for the realistic inclusion of Coulomb correlations. It is shown that for off-resonant mid-IR excitation Coulomb correlations lead to a dramatic enhancement of HHG intensity by up to two orders of magnitude. For resonant excitation near the fundamental excitonic resonance the Coulomb interaction leads to dressed harmonics. These have a sub-floor of broad spectral contributions. The amplitude of these contributions is about four to six orders of magnitude below the peak. The width scales linearly with the exciting field and can reach hundreds of meV.",
keywords = "2D materials, Coulomb, dressed harmonics, exciton, high harmonic generation, monolayer, semiconductor Bloch equations, transition-metal dichalcogenides",
author = "J{\"o}rg Hader and Josefine Neuhaus and Moloney, {Jerome V} and Koch, {Stephan W.}",
note = "Funding Information: This work was supported by the Air Force Office of Scientific Research under award number FA9550-21-1-0463 and by the Deutsche Forschungsgemeinschaft under SFB 1083. Publisher Copyright: {\textcopyright} 2023 SPIE.; 2D Photonic Materials and Devices VI 2023 ; Conference date: 31-01-2023 Through 02-02-2023",
year = "2023",
doi = "10.1117/12.2655642",
language = "English (US)",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Arka Majumdar and Torres, {Carlos M.} and Hui Deng",
booktitle = "2D Photonic Materials and Devices VI",
}