Supercontinuum generation of ultrashort laser pulses in air at different central wavelengths

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dc.creatorSkupin, S.
dc.creatorBerge, L.
dc.date2007-03-15
dc.date.accessioned2026-07-07T09:35:56Z
dc.date.available2026-07-07T09:35:56Z
dc.descriptionSupercontinuum generation by femtosecond filaments in air is investigated for different laser wavelengths ranging from ultraviolet to infrared. Particular attention is paid on the role of third-harmonic generation and temporal steepening effects, which enlarge the blue part of the spectrum. A unidirectional pulse propagation model and nonlinear evolution equations are numerically integrated and their results are compared. Apart from the choice of the central wavelength, we emphasize the importance of the saturation intensity reached by self-guided pulses, together with their temporal duration and propagation length as key players acting on both supercontinuum generation of the pump wave and emergence of the third harmonics. Maximal broadening is observed for large wavelengths and long filamentation ranges.
dc.description10 pages, 11 figures
dc.identifierhttps://arxiv.org/abs/physics/0703155
dc.identifierhttp://arxiv.org/abs/physics/0703155
dc.identifierOpt. Commun. 280, 173 (2007)
dc.identifierdoi:10.1016/j.optcom.2007.06.067
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/160001
dc.subjectOptics
dc.subjectPlasma Physics
dc.titleSupercontinuum generation of ultrashort laser pulses in air at different central wavelengths
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