High harmonic generation in AlN due to out-of-surface electron orbitals
| Autor: | Jozsef Seres, E. Seres, Thorsten Schumm, Carles Serrat |
|---|---|
| Přispěvatelé: | Universitat Politècnica de Catalunya. Departament de Física, Universitat Politècnica de Catalunya. DONLL - Dinàmica no Lineal, Òptica no Lineal i Làsers |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Surface (mathematics)
Ultraviolet radiation Materials science Física [Àrees temàtiques de la UPC] Computation Radiació ultraviolada Sòlids Molecular physics Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Physical optics Òptica física physics atomic clock thorium 229 Surface wave Extreme ultraviolet High harmonic generation Solids Electron configuration Electrical and Electronic Engineering Laser beams Beam (structure) |
| Zdroj: | UPCommons. Portal del coneixement obert de la UPC Universitat Politècnica de Catalunya (UPC) |
| Popis: | © 2021 Optical Society of America. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modifications of the content of this paper are prohibited. High harmonic generation in solids is commonly considered as a bulk process. However, there is a controversy whether the experimentally observed effects can in their entirety be described by a pure bulk model. Our results based on beam propagation and spectral characteristics provide a clear signature of the importance of surface effects on the origin of the harmonic generation in solids. Computations performed with a time-dependent density-functional approach corroborate the experimental measurements. European Metrology Programme for Innovation and Research (CC4C); Ministerio de Economía y Competitividad (FIS2017-85526-R); Horizon 2020 Framework Programme (856415). The authors thank Erin Young for growing and characterizing the AlN samples. |
| Databáze: | OpenAIRE |
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