High-harmonic spectroscopy of strongly bound excitons in solids
Materials Science
2024-06-12 v1 Optics
Abstract
We explore the nonlinear response of ultrafast strong-field driven excitons in a one-dimensional solid with ab initio simulations. We demonstrate from our simulations and analytical model that a finite population of excitons imprints unique signatures to the high-harmonic spectra of materials. We show the exciton population can be retrieved from the spectra. We further demonstrate signatures of exciton recombination and that a shift of the exciton level is imprinted into the harmonic signal. The results open the door to high-harmonic spectroscopy of excitons in condensed-matter systems.
Keywords
Cite
@article{arxiv.2307.14693,
title = {High-harmonic spectroscopy of strongly bound excitons in solids},
author = {Simon Vendelbo Bylling Jensen and Lars Bojer Madsen and Angel Rubio and Nicolas Tancogne-Dejean},
journal= {arXiv preprint arXiv:2307.14693},
year = {2024}
}