Exact and Paraxial Broadband Airy Wave Packets in Free Space and a Temporally Dispersive Medium

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dc.contributor.authorBesieris, Ioannis M.en
dc.contributor.authorSaari, Peeteren
dc.date.accessioned2024-02-01T14:30:15Zen
dc.date.available2024-02-01T14:30:15Zen
dc.date.issued2024-01-21en
dc.date.updated2024-01-26T14:10:49Zen
dc.description.abstractA question of physical importance is whether finite-energy spatiotemporally localized (i.e., pulsed) generalizations of monochromatic accelerating Airy beams are feasible. For luminal solutions, this question has been answered within the framework of paraxial geometry. The time-diffraction technique that has been motivated by the Lorentz invariance of the equation governing the narrow angular spectrum and narrowband temporal spectrum paraxial approximation has been used to derive finite-energy spatiotemporally confined subluminal, luminal, and superluminal Airy wave packets. The goal in this article is to provide novel exact finite-energy broadband spatio-temporally localized Airy solutions (a) to the scalar wave equation in free space; (b) in a dielectric medium moving at its phase velocity; and (c) in a lossless second-order temporally dispersive medium. Such solutions can be useful in practical applications involving broadband (few-cycle) wave packets.en
dc.description.versionPublished versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationBesieris, I.M.; Saari, P. Exact and Paraxial Broadband Airy Wave Packets in Free Space and a Temporally Dispersive Medium. Photonics 2024, 11, 94.en
dc.identifier.doihttps://doi.org/10.3390/photonics11010094en
dc.identifier.urihttps://hdl.handle.net/10919/117787en
dc.language.isoenen
dc.publisherMDPIen
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectAiry beamsen
dc.subjectnondiffracting pulsesen
dc.subjectlocalized wavesen
dc.subjectspace–time wave packetsen
dc.titleExact and Paraxial Broadband Airy Wave Packets in Free Space and a Temporally Dispersive Mediumen
dc.title.serialPhotonicsen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

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