The role of the Kramers-Henneberger atom in the higher-order Kerr effect

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DOIResolve DOI: http://doi.org/10.1088/1367-2630/15/8/083012
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TypeArticle
Journal titleNew Journal of Physics
ISSN1367-2630
Volume15
Article number83012
SubjectDriving field; External fields; Generalized models; Intensity-dependent; Kerr response; Non-linear response; Strong field ionization; The standard model; Atomic spectroscopy; Atoms; Optical Kerr effect
AbstractWe discuss the connection between strong-field ionization, saturation of the Kerr response and the formation of the Kramers-Henneberger (KH) atom and long-living excitations in intense infrared (IR) external fields. We present a generalized model for the intensity-dependent response of atoms in strong IR laser fields, describing deviations in the nonlinear response at the frequency of the driving field from the standard model. We show that shaping the driving laser pulse allows one to reveal signatures of the excited KH states in the Kerr response of an individual atom. © IOP Publishing and Deutsche Physikalische Gesellschaft.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC)
Peer reviewedYes
NPARC number21270537
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Record identifier816a6bc4-d47a-4471-bea1-2fe142b2eb52
Record created2014-02-17
Record modified2016-05-09
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