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arXiv · 2307.14693

High-harmonic spectroscopy of strongly bound excitons in solids

Simon Vendelbo Bylling Jensen·Lars Bojer Madsen·Angel Rubio·Nicolas Tancogne-Dejean
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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.

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BibTeXRIS

Simon Vendelbo Bylling Jensen, Lars Bojer Madsen, Angel Rubio, Nicolas Tancogne-Dejean. 2023-07-27. High-harmonic spectroscopy of strongly bound excitons in solids. https://doi.org/10.1103/physreva.109.063104

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