| DOI | Trouver le DOI : https://doi.org/10.1038/s41566-021-00907-7 |
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| Auteur | Rechercher : Peng, Peng1Identifiant ORCID : https://orcid.org/0000-0002-0165-4984; Rechercher : Mi, Yonghao1Identifiant ORCID : https://orcid.org/0000-0002-2905-637X; Rechercher : Lytova, Marianna; Rechercher : Britton, Mathew; Rechercher : Ding, Xiaoyan1; Rechercher : Naumov, A. Yu.1Identifiant ORCID : https://orcid.org/0000-0002-4593-2560; Rechercher : Corkum, P. B.1; Rechercher : Villeneuve, D. M.1Identifiant ORCID : https://orcid.org/0000-0002-2810-3648 |
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| Affiliation | - Conseil national de recherches du Canada. Technologies de sécurité et de rupture
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| Bailleur de fonds | Rechercher : Gouvernement du Canada | Natural Sciences and Engineering Research Council of Canada; Rechercher : United States Department of Defense | United States Army | U.S. Army Research, Development and Engineering Command | Army Research Office |
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| Format | Texte, Article |
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| Résumé | Ultrafast extreme ultraviolet (XUV) transient absorption is the process by which atoms and molecules absorb light on a timescale faster than the lifetime of the states involved. Coherent control uses quantum coherences to manipulate quantum pathways in light–matter interactions. Here we combine the two. We show that we can control the absorption spectral lineshape, changing it from Lorentzian to Fano to inverted Lorentzian and back again. The control is achieved by creating quantum coherence in the ground electronic state of hydrogen molecules, long before the arrival of the ultrafast XUV pulse. We show that the absorption can become negative at 12 eV, which is the optical gain. These observations provide new insights into the control of spectral lineshapes and open the way for achieving lasing without inversion in the XUV spectral range. |
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| Date de publication | 2021-12-13 |
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| Maison d’édition | Nature Research |
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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 | f6c52d73-1d48-4a0f-b298-fe957c75efed |
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| Enregistrement créé | 2022-05-24 |
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| Enregistrement modifié | 2022-05-27 |
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