Bound-Electron Nonlinearity Beyond the Ionization Threshold

Physical Review Letters
J K WahlstrandH M Milchberg

Abstract

We present absolute space- and time-resolved measurements of the ultrafast laser-driven nonlinear polarizability in argon, krypton, xenon, nitrogen, and oxygen up to ionization fractions of a few percent. These measurements enable determination of the strongly nonperturbative bound-electron nonlinear polarizability well beyond the ionization threshold, where it is found to remain approximately quadratic in the laser field, a result normally expected at much lower intensities where perturbation theory applies.

References

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Apr 7, 2010·Physical Review Letters·P BéjotJ-P Wolf
Jun 4, 2011·Physical Review Letters·Carsten BréeGünter Steinmeyer
Oct 11, 2011·Physical Review Letters·J K WahlstrandH M Milchberg
Sep 26, 2012·Physical Review Letters·J K WahlstrandH M Milchberg
Oct 4, 2012·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·J Andreasen, M Kolesik
Mar 14, 2013·Optics Express·Y-H ChengH M Milchberg
Jan 25, 2013·Physical Review Letters·P BéjotO Faucher

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Citations

Nov 25, 2018·Optics Express·J Tolliver, M Kolesik
Jun 15, 2019·Optics Letters·Paris PanagiotopoulosJerome V Moloney
Sep 11, 2020·Optics Express·Jonathan HeinzMiroslav Kolesik
May 15, 2020·Optics Express·Dhruvit PatelKi-Yong Kim
Dec 11, 2020·Light, Science & Applications·Vladimir Yu Fedorov, Stelios Tzortzakis
Mar 3, 2021·Optics Letters·S W HancockH M Milchberg

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