| DOI | Trouver le DOI : https://doi.org/10.1126/science.aaq0053 |
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| Auteur | Rechercher : Vampa, G.; Rechercher : Hammond, T. J.; Rechercher : Nesrallah, M.; Rechercher : Naumov, A. Yu.1; Rechercher : Corkum, P. B.1; Rechercher : Brabec, T. |
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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 | Amplification of femtosecond laser pulses typically requires a lasing medium or a nonlinear crystal. In either case, the chemical properties of the lasing medium or the momentum conservation in the nonlinear crystal constrain the frequency and the bandwidth of the amplified pulses. We demonstrate high gain amplification (greater than 1000) of widely tunable (0.5 to 2.2 micrometers) and short (less than 60 femtosecond) laser pulses, up to intensities of 1 terawatt per square centimeter, by seeding the modulation instability in an Y3Al5O12 crystal pumped by femtosecond near-infrared pulses. Our method avoids constraints related to doping and phase matching and therefore can occur in a wider pool of glasses and crystals even at far-infrared frequencies and for single-cycle pulses. Such amplified pulses are ideal to study strong-field processes in solids and highly excited states in gases. |
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| Date de publication | 2018-02-09 |
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| Maison d’édition | American Association for the Advancement of Science |
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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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| Numéro NPARC | 23003736 |
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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 | e2abf040-d695-4125-8cb3-679d5c06fb3b |
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| Enregistrement créé | 2018-08-07 |
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| Enregistrement modifié | 2020-03-16 |
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