Dressed bound states for attosecond dynamics in strong laser fields

[Display omitted] ► An intense laser pulse affects the resonant absorption of an attosecond pulse. ► We axiomatically define bound states distorted by a strong ionizing electric field. ► Such dressed bound states are useful to interpret recent attosecond measurements. ► We compare and discuss severa...

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Bibliographic Details
Published in:Chemical physics 2013-03, Vol.414, p.26-31
Main Authors: Yakovlev, V.S., Korbman, M., Scrinzi, A.
Format: Article
Language:English
Subjects:
Attosecond science
Pump–probe measurements
Strong-field ionization
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Summary:[Display omitted] ► An intense laser pulse affects the resonant absorption of an attosecond pulse. ► We axiomatically define bound states distorted by a strong ionizing electric field. ► Such dressed bound states are useful to interpret recent attosecond measurements. ► We compare and discuss several kinds of dressed bound states. We propose a theoretical approach for the interpretation of pump–probe measurements where an attosecond pulse is absorbed in the presence of an intense laser pulse. This approach is based on abstractly defined dressed bound states, which capture the essential aspects of the interaction with the laser pulse and facilitate a perturbative description of transitions induced by the attosecond pulse. Necessary properties of dressed bound states are defined and various choices are discussed and compared to accurate numerical solutions of the time-dependent Schrödinger equation.
ISSN:0301-0104
DOI:10.1016/j.chemphys.2012.01.005