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Spectral self-action of THz emission from ionizing two-color laser pulses in gases

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dc.contributor.authorCabrera Granado, Eduardo
dc.contributor.authorChen, Yxing
dc.contributor.authorBabushkin, Ihar
dc.contributor.authorBergé, Luc
dc.contributor.authorSkupin, Stephan
dc.date.accessioned2023-06-18T06:57:57Z
dc.date.available2023-06-18T06:57:57Z
dc.date.issued2015-02-18
dc.description.abstractThe spectrum of terahertz (THz) emission in gases via ionizing two-color femtosecond pulses is analyzed by means of a semi-analytic model and numerical simulations in 1D, 2D and 3D geometries taking into account propagation effects of both pump and THz fields. We show that produced THz signals interact with free electron trajectories and thus significantly influence further THz generation upon propagation, i.e., make the process inherently nonlocal. This self-action contributes to the observed strong spectral broadening of the generated THz field. We show that diffraction of the generated THz radiation is the limiting factor for the co-propagating low frequency amplitudes and thus for the self-action mechanism in 2D and 3D geometries.
dc.description.departmentSección Deptal. de Óptica (Óptica)
dc.description.facultyFac. de Óptica y Optometría
dc.description.refereedTRUE
dc.description.statuspub
dc.eprint.idhttps://eprints.ucm.es/id/eprint/39855
dc.identifier.doi10.1088/1367-2630/17/2/023060
dc.identifier.issn1367-2630
dc.identifier.officialurlhttp://dx.doi.org/10.1088/1367-2630/17/2/023060
dc.identifier.urihttps://hdl.handle.net/20.500.14352/24685
dc.journal.titleNew Journal of Physics
dc.language.isoeng
dc.page.initial9 p.
dc.publisherIOP Publishing
dc.relation.projectIDPRI-AIBDE-2011-0902 resp. DAAD-PPP-54367872
dc.relation.projectIDSFB-910
dc.rightsAtribución 3.0 España
dc.rights.accessRightsopen access
dc.rights.urihttps://creativecommons.org/licenses/by/3.0/es/
dc.subject.cdu535.374
dc.subject.cdu532.59
dc.subject.keywordUltrafast nonlinear optics
dc.subject.keywordphotoionization
dc.subject.keywordTHz generation
dc.subject.keywordfar infrared spectroscopy
dc.subject.keywordmulti-color pulses
dc.subject.ucmÓptica (Física)
dc.subject.unesco2209.19 Óptica Física
dc.titleSpectral self-action of THz emission from ionizing two-color laser pulses in gases
dc.typejournal article
dc.volume.number17
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