| Téléchargement | - Voir la version finale : Rotational quantum beat lasing without inversion (PDF, 2.9 Mio)
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| DOI | Trouver le DOI : https://doi.org/10.1364/OPTICA.390665 |
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| Auteur | Rechercher : Richter, Maria; Rechercher : Lytova, Marianna1; Rechercher : Morales, Felipe; Rechercher : Haessler, Stefan; Rechercher : Smirnova, Olga; Rechercher : Spanner, Michael1; Rechercher : Ivanov, Misha |
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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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| Résumé | In standard lasers, light amplification requires population inversion between an upper and a lower state to break the reciprocity between absorption and stimulated emission. However, in a medium prepared in a specific superposition state, quantum interference may fully suppress absorption while leaving stimulated emission intact, opening the possibility of lasing without inversion. Here we show that lasing without inversion arises naturally during propagation of intense femtosecond laser pulses in air. It is triggered by the combination of molecular ionization and molecular alignment, both unavoidable in intense light fields. The effect could enable inversionless amplification of broadband radiation in many molecular gases, opening unusual opportunities for remote sensing. |
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| Date de publication | 2020-05-27 |
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| Maison d’édition | Optical Society of America |
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| Licence | |
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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 | c6898667-b632-46e6-8d9c-8062b87866fc |
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| Enregistrement créé | 2021-05-12 |
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| Enregistrement modifié | 2021-05-14 |
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