Fine-scale oscillations in the wavelength- and intensity-dependence of high-harmonic generation: connection with channel closings

Simple item page
dc.creatorIshikawa, K. L.
dc.creatorSchiessl, K.
dc.creatorPersson, E.
dc.creatorBurgdörfer, J.
dc.date2009-01-13
dc.date.accessioned2026-07-07T12:28:54Z
dc.date.available2026-07-07T12:28:54Z
dc.descriptionWe investigate the connection of recently identified fine-scale oscillations in the dependence of the yield of the high-harmonic generation (HHG) on wavelength lambda of a few-cycle laser pulse [K. Schiessl, K.L. Ishikawa, E. Persson, and J. Burgdorfer, Phys. Rev. Lett. 99, 253903 (2007)] to the well-known channel closing (CC) effect. Using the Lewenstein model of HHG, we identify the origin of the oscillations as quantum interference of many rescattering trajectories. By studying the simultaneous variations with intensity and wavelength, different models for the interference of channel closing peaks can be tested. Contrary to theoretical predictions for short-range potentials, the peaks are not located neither at nor just below the CC condition, but a significant shift is observed. The long Coulomb tail of the atomic potential is identified as the origin of the shift.
dc.description11 pages, 13 figures
dc.identifierhttps://arxiv.org/abs/0901.1738
dc.identifierhttp://arxiv.org/abs/0901.1738
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/215700
dc.subjectAtomic Physics
dc.subjectOptics
dc.titleFine-scale oscillations in the wavelength- and intensity-dependence of high-harmonic generation: connection with channel closings
dc.typetext

Files

Collections

arXiv