A method to generate a single sub-50-as pulse by employing a 5-fs laser pulse with intensity above the saturation intensity, was proposed. The neon target medium of 0.5 mm length and 5 Torr pressure, was placed 10 mm beyond the laser focus. Harmonic radiation from neon atoms, was obtained by solving the time-dependent Schrödinger equation coupled with Maxwell equations. The results show that the positive chirp contained in the broad continuum radiation can be compensated by an x-ray filter with a negative group delay dispersion in the spectral region of interest.

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dc.contributor.authorKim, K.T.
dc.contributor.authorKim, C.M.
dc.contributor.authorBaik, M.G.
dc.contributor.authorUmesh, G.
dc.contributor.authorNam, C.H.
dc.date.accessioned2026-02-05T11:00:20Z
dc.date.issuedSingle sub-50-attosecond pulse generation from chirp-compensated harmonic radiation using material dispersion
dc.description.abstract2004
dc.identifier.citationPhysical Review A - Atomic, Molecular, and Optical Physics, 2004, 69, 0.208333333333333, pp. 1-51805
dc.identifier.issn10502947
dc.identifier.urihttps://doi.org/10.1103/PhysRevA.69.051805
dc.identifier.urihttps://idr.nitk.ac.in/handle/123456789/27959
dc.publisherAmerican Physical Society
dc.subjectHarmonic generation
dc.subjectHigh energy lasers
dc.subjectIonization
dc.subjectLight absorption
dc.subjectLight propagation
dc.subjectLight transmission
dc.subjectMaxwell equations
dc.subjectNeon
dc.subjectOptical filters
dc.subjectRefractive index
dc.subjectX rays
dc.subjectHarmonic radiation
dc.subjectLinear frequency chirp
dc.subjectSingle attosecond pulses
dc.subjectX ray filters
dc.subjectLaser pulses
dc.titleA method to generate a single sub-50-as pulse by employing a 5-fs laser pulse with intensity above the saturation intensity, was proposed. The neon target medium of 0.5 mm length and 5 Torr pressure, was placed 10 mm beyond the laser focus. Harmonic radiation from neon atoms, was obtained by solving the time-dependent Schrödinger equation coupled with Maxwell equations. The results show that the positive chirp contained in the broad continuum radiation can be compensated by an x-ray filter with a negative group delay dispersion in the spectral region of interest.

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