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dc.contributor.authorVicario, Carlo
dc.contributor.authorMonoszlai, B.
dc.contributor.authorArisholm, Gunnar
dc.contributor.authorHauri, CP
dc.date.accessioned2015-11-20T11:39:37Z
dc.date.accessioned2016-03-10T13:55:32Z
dc.date.available2015-11-20T11:39:37Z
dc.date.available2016-03-10T13:55:32Z
dc.date.issued2015
dc.identifier.citationJournal of Optics 2015, 17(9)en_GB
dc.identifier.urihttps://ffi-publikasjoner.archive.knowledgearc.net/handle/20.500.12242/59
dc.descriptionVicario, Carlo; Monoszlai, B.; Arisholm, Gunnar; Hauri, CP. Generation of 1.5-octave intense infrared pulses by nonlinear interactions in DAST crystal. Journal of Optics 2015 ;Volum 17.(9)en_GB
dc.description.abstractInfrared pulses with large spectral width extending from 1.2 to 3.4 μm are generated in the organic crystal DAST (4-N, N-dimethylamino-4'-N'-methylstilbazolium tosylate). The input pulse has a central wavelength of 1.5 μm and 65 fs duration. With 2.8 mJ input energy we obtained up to 700 μJ in the broadened spectrum. The output can be easily scaled up in energy by increasing the crystal size together with the energy and the beam size of the pump. The ultra-broad spectrum is ascribed to cascaded second order processes mediated by the exceptionally large effective χ 2 nonlinearity of DAST, but the shape of the spectrum indicates that a delayed χ 3 process may also be involved. Numerical simulations reproduce the experimental results qualitatively and provide an insight in the mechanisms underlying the asymmetric spectral broadening.en_GB
dc.language.isoenen_GB
dc.subjectTermset Emneord::Infrarøde stråler
dc.subjectTermset Emneord::Infrarødlasere
dc.titleGeneration of 1.5-octave intense infrared pulses by nonlinear interactions in DAST crystalen_GB
dc.typeArticleen_GB
dc.date.updated2015-11-20T11:39:37Z
dc.identifier.cristinID1282389
dc.identifier.cristinID1282389
dc.identifier.doi10.1088/2040-8978/17/9/094005
dc.source.issn2040-8986
dc.type.documentJournal article


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