| DOI | Trouver le DOI : https://doi.org/10.1088/1361-6455/ab8e57 |
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| Auteur | Rechercher : Li, JialinIdentifiant ORCID : https://orcid.org/0000-0003-3786-004X; Rechercher : Wang, Yang; Rechercher : Guo, Tianyi; Rechercher : White, Jonathon; Rechercher : Weidman, Matthew; Rechercher : Wu, Yi; Rechercher : Hu, Kai; Rechercher : Jager, Marieke F.; Rechercher : Kaplan, Christopher J.; Rechercher : Geneaux, Romain; Rechercher : Neumark, Daniel M.; Rechercher : Leone, Stephen R.; Rechercher : Brown, Graham G.1; Rechercher : Corkum, Paul1; Rechercher : Chang, Zenghu |
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| Affiliation | - Conseil national de recherches du Canada. Technologies de sécurité et de rupture
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| Format | Texte, Article |
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| Sujet | wavefront correction; high harmonic generation; XUV |
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| Résumé | It has been demonstrated in the past that high fluxes of extreme ultraviolet (XUV) light could be obtained by driving high harmonic generation (HHG) with high energy lasers. However, the peak intensity at the focal point of a femtosecond laser with more than 100 mJ can be too high for phase-matched HHG in gases. We propose a method to optimize the spatial profile at off-focus locations of the high energy driving laser to avoid fully ionizing the target atoms. The beam profile before or after the focal point depends on the wavefront quality of the laser beam and the near field intensity distribution. The beam spot diameter reaches three times that at the focus by adding customized wavefront terms. An XUV pulse energy of 5.6 μJ was obtained from HHG when a larger off-focus spot of a 500 mJ Ti: sapphire laser beam was applied in an argon gas cell. |
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| Date de publication | 2020-06-18 |
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| Maison d’édition | IOP Publishing |
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| Dans | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | 3c958150-1166-4786-8175-a6e2bb62a361 |
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| Enregistrement créé | 2021-05-12 |
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| Enregistrement modifié | 2023-08-11 |
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