Boosting terahertz generation in laser-field ionized gases using a sawtooth wave shape

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dc.identifier.uri http://dx.doi.org/10.15488/3292
dc.identifier.uri http://www.repo.uni-hannover.de/handle/123456789/3322
dc.contributor.author Martínez, P.G.D.A.
dc.contributor.author Babushkin, I.
dc.contributor.author Bergé, L.
dc.contributor.author Skupin, S.
dc.contributor.author Cabrera-Granado, E.
dc.contributor.author Köhler, C.
dc.contributor.author Morgner, Uwe
dc.contributor.author Husakou, A.
dc.contributor.author Herrmann, J.
dc.date.accessioned 2018-05-09T12:41:44Z
dc.date.available 2018-05-09T12:41:44Z
dc.date.issued 2015
dc.identifier.citation Martínez, P.G.D.A.; Babushkin, I.; Bergé, L.; Skupin, S.; Cabrera-Granado, E. et al.: Boosting terahertz generation in laser-field ionized gases using a sawtooth wave shape. In: Physical Review Letters 114 (2015), Nr. 18, 183901. DOI: https://doi.org/10.1103/PhysRevLett.114.183901
dc.description.abstract Broadband ultrashort terahertz (THz) pulses can be produced using plasma generation in a noble gas ionized by femtosecond two-color pulses. Here we demonstrate that, by using multiple-frequency laser pulses, one can obtain a waveform which optimizes the free electron trajectories in such a way that they acquire the largest drift velocity. This allows us to increase the THz conversion efficiency to 2%, an unprecedented performance for THz generation in gases. In addition to the analytical study of THz generation using a local current model, we perform comprehensive 3D simulations accounting for propagation effects which confirm this prediction. Our results show that THz conversion via tunnel ionization can be greatly improved with well-designed multicolor pulses. © 2015 American Physical Society. eng
dc.language.iso eng
dc.publisher American Physical Society
dc.relation.ispartofseries Physical Review Letters 114 (2015), Nr. 18
dc.rights Es gilt deutsches Urheberrecht. Das Dokument darf zum eigenen Gebrauch kostenfrei genutzt, aber nicht im Internet bereitgestellt oder an Außenstehende weitergegeben werden.
dc.subject Electrons eng
dc.subject Inert gases eng
dc.subject Ionization eng
dc.subject Terahertz waves eng
dc.subject Analytical studies eng
dc.subject Current modeling eng
dc.subject Drift velocities eng
dc.subject Multiple frequency eng
dc.subject Plasma generation eng
dc.subject Propagation effect eng
dc.subject Terahertz generation eng
dc.subject Tunnel ionization eng
dc.subject Ionization of gases eng
dc.subject.ddc 530 | Physik ger
dc.title Boosting terahertz generation in laser-field ionized gases using a sawtooth wave shape
dc.type article
dc.type Text
dc.relation.issn 0031-9007
dc.relation.doi https://doi.org/10.1103/PhysRevLett.114.183901
dc.bibliographicCitation.issue 18
dc.bibliographicCitation.volume 114
dc.bibliographicCitation.firstPage 183901
dc.description.version publishedVersion
tib.accessRights frei zug�nglich


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