Influence of Coulomb correlations on high harmonic generation in monolayer TMDCs

Jörg Hader, Josefine Neuhaus, Jerome V Moloney, Stephan W. Koch

Research output: Chapter in Book/Report/Conference proceedingConference contribution


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.

Original languageEnglish (US)
Title of host publication2D Photonic Materials and Devices VI
EditorsArka Majumdar, Carlos M. Torres, Hui Deng
ISBN (Electronic)9781510659513
StatePublished - 2023
Event2D Photonic Materials and Devices VI 2023 - San Francisco, United States
Duration: Jan 31 2023Feb 2 2023

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


Conference2D Photonic Materials and Devices VI 2023
Country/TerritoryUnited States
CitySan Francisco


  • 2D materials
  • Coulomb
  • dressed harmonics
  • exciton
  • high harmonic generation
  • monolayer
  • semiconductor Bloch equations
  • transition-metal dichalcogenides

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


Dive into the research topics of 'Influence of Coulomb correlations on high harmonic generation in monolayer TMDCs'. Together they form a unique fingerprint.

Cite this