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Title: The role of the Kramers-Henneberger atom in the higher-order Kerr effect
Authors: Richter, M.Patchkovskii, S.Morales, F.Smirnova, O.Ivanov, M.
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Issue Date: 2013
Published in: New Journal of Physics Vol. 15 (2013)
Publisher: Bristol : IOP
Abstract: We 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.
Keywords: Driving field; External fields; Generalized models; Intensity-dependent; Kerr response; Non-linear response; Strong field ionization; The standard model; Atomic spectroscopy; Atoms; Optical Kerr effect
DDC: 530
License: CC BY 3.0 Unported
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