A unified perspective of high-harmonic generation in gases and solids

Fuente: arXiv
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Autores principales: Thorpe, Adam, Boroumand, Neda, Bart, Graeme, Wang, Lu, Vampa, Giulio, Brabec, Thomas
Formato: Preprint
Publicado: 2025
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author Thorpe, Adam
Boroumand, Neda
Bart, Graeme
Wang, Lu
Vampa, Giulio
Brabec, Thomas
author_facet Thorpe, Adam
Boroumand, Neda
Bart, Graeme
Wang, Lu
Vampa, Giulio
Brabec, Thomas
contents We present a quantum optical generalization of the quantum-matter Lewenstein model of high-harmonic generation (HHG) in gases that contains two channels corresponding to the inter- and intraband HHG in solids. Both channels can be presented as a semiclassical current multiplied by the vacuum field strength, resulting in a quantitative correction and a faster roll-off of the harmonic power with order than in previous theories. In gases, like in solids, intraband HHG dominates at low orders; the switchover harmonic corresponds to a specific photon energy, independent of pump wavelength.
format Preprint
id arxiv_https___arxiv_org_abs_2508_14212
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle A unified perspective of high-harmonic generation in gases and solids
Thorpe, Adam
Boroumand, Neda
Bart, Graeme
Wang, Lu
Vampa, Giulio
Brabec, Thomas
Atomic Physics
We present a quantum optical generalization of the quantum-matter Lewenstein model of high-harmonic generation (HHG) in gases that contains two channels corresponding to the inter- and intraband HHG in solids. Both channels can be presented as a semiclassical current multiplied by the vacuum field strength, resulting in a quantitative correction and a faster roll-off of the harmonic power with order than in previous theories. In gases, like in solids, intraband HHG dominates at low orders; the switchover harmonic corresponds to a specific photon energy, independent of pump wavelength.
title A unified perspective of high-harmonic generation in gases and solids
topic Atomic Physics
url https://arxiv.org/abs/2508.14212