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Phys Rev Lett. 2008 Jun 13;100(23):233603. Epub 2008 Jun 12.

Strong field multiphoton inversion of a three-level system using shaped ultrafast laser pulses.

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  • 1Department of Physics Stony Brook University, Stony Brook, NY 11794, USA.


We demonstrate strong-field population inversion in a three-level system with single and multiphoton coupling between levels using a single shaped ultrafast laser pulse. Our interpretation of the pulse shape dependence illustrates the difference between sequential population transfer and adiabatic rapid passage in three-level systems with multiphoton coupling between levels.

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