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Journal Article

High-harmonic spectroscopy of strongly bound excitons in solids

MPS-Authors
/persons/resource/persons22028

Rubio,  A.
Theory Group, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;
Center for Free-Electron Laser Science Institute;
Center for Computational Quantum Physics (CCQ), The Flatiron Institute;

/persons/resource/persons194586

Tancogne-Dejean,  N.
Theory Group, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;
Center for Free-Electron Laser Science Institute;

External Resource

https://arxiv.org/abs/2307.14693
(Preprint)

https://doi.org/10.1103/PhysRevA.109.063104
(Publisher version)

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PhysRevA.109.063104.pdf
(Publisher version), 3MB

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Citation

Jensen, S. V. B., Madsen, L. B., Rubio, A., & Tancogne-Dejean, N. (2024). High-harmonic spectroscopy of strongly bound excitons in solids. Physical Review A, 109(6): 063104. doi:10.1103/PhysRevA.109.063104.


Cite as: https://hdl.handle.net/21.11116/0000-000D-80E0-4
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.