Attosecond emission from chromium plasma
| Autor: | F. Lepetit, Stefan Haessler, J.-F. Hergott, Pascal Salières, O. Gobert, Bertrand Carré, L. B. Elouga Bom, M. Perdrix, Tsuneyuki Ozaki |
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| Přispěvatelé: | Institut National de la Recherche Scientifique [Québec] (INRS), Service des Photons, Atomes et Molécules (SPAM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Photonics Institute, Vienna University of Technology (TU Wien), Austrian Science Fund (FWF) M1260-N16, Austrian Science Fund (FWF) 21463-N22, ANR-09-BLAN-0031,ATTO-WAVE(2009), European Project: 238362,EC:FP7:PEOPLE,FP7-PEOPLE-ITN-2008,ATTOFEL(2009) |
| Jazyk: | angličtina |
| Rok vydání: | 2011 |
| Předmět: |
Physics
[PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics] [PHYS.PHYS]Physics [physics]/Physics [physics] [PHYS.PHYS.PHYS-ATOM-PH]Physics [physics]/Physics [physics]/Atomic Physics [physics.atom-ph] business.industry Attosecond Nonlinear optics Plasma Laser 7. Clean energy 01 natural sciences Atomic and Molecular Physics and Optics law.invention 010309 optics Optics law Harmonics 0103 physical sciences Femtosecond Group delay dispersion High harmonic generation Atomic physics 010306 general physics business |
| Zdroj: | Optics Express Optics Express, Optical Society of America-OSA Publishing, 2011, 19 (4), pp.3677. ⟨10.1364/OE.19.003677⟩ Optics Express, 2011, 19 (4), pp.3677. ⟨10.1364/OE.19.003677⟩ |
| ISSN: | 1094-4087 |
| DOI: | 10.1364/OE.19.003677⟩ |
| Popis: | International audience; We present the first measurement of the attosecond emission generated from underdense plasma produced on a solid target. We generate high-order harmonics of a femtosecond Ti:sapphire laser focused in a weakly ionized underdense chromium plasma. Using the " Reconstruction of Attosecond Beating by Interference of Two-photon Transitions " (RABITT) technique, we show that the 11 th to the 19 th harmonic orders form in the time domain an attosecond pulse train with each pulse having 300 as duration, which is only 1.05 times the theoretical Fourier transform limit. Measurements reveal a very low positive group delay dispersion of 4200 as 2. Beside its fundamental interest, high-order harmonic generation in plasma plumes could thus provide an intense source of attosecond pulses for applications. |
| Databáze: | OpenAIRE |
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