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Lookup NU author(s): Dr Gareth Roberts
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The cycle-averaged ac Stark effect associated with the A (2)Sigma(+) nu', = 2 <-- X-2 Pi (1/2)nu' = 0 two-photon absorption of NO at intensities between 7.7 and 15.2 TWcm(-2) has been characterized in real time through a synergic combination of bichromatic laser experiments and quantum-dynamics calculations. Measurements of the fluorescence emitted by the Rydberg A (2)Sigma(+) nu' = 2 level as a function of time between Stark and probe components of a bichromatic field exhibit a characteristic evolution in temporal peak structure with Stark-field intensity, which is interpreted in terms of a time-dependent Floquet analysis of the laser-matter interaction. The experimental observations are consistent with a dynamic Stark shift of Deltaepsilon(s)(omega(1) , omega(2)) less than or equal to0.23 eV of the optical transition at these intensities.
Author(s): Lopez-Martens RB, Schmidt TW, Roberts G
Publication type: Article
Publication status: Published
Journal: Applied Physics B: Lasers and Optics
Year: 2002
Volume: 74
Issue: 6
Pages: 577-581
ISSN (print): 0946-2171
ISSN (electronic): 1432-0649
Publisher: Springer
URL: http://dx.doi.org/10.1007/s003400200839
DOI: 10.1007/s003400200839
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