High-harmonic spectroscopy of strongly bound excitons in solids
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arXiv
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| Main Authors: | , , , |
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| Format: | Preprint |
| Published: |
2023
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| _version_ | 1866917689478348800 |
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| author | Jensen, Simon Vendelbo Bylling Madsen, Lars Bojer Rubio, Angel Tancogne-Dejean, Nicolas |
| author_facet | Jensen, Simon Vendelbo Bylling Madsen, Lars Bojer Rubio, Angel Tancogne-Dejean, Nicolas |
| contents | 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2307_14693 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | High-harmonic spectroscopy of strongly bound excitons in solids Jensen, Simon Vendelbo Bylling Madsen, Lars Bojer Rubio, Angel Tancogne-Dejean, Nicolas Materials Science Optics 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. |
| title | High-harmonic spectroscopy of strongly bound excitons in solids |
| topic | Materials Science Optics |
| url | https://arxiv.org/abs/2307.14693 |