Selective Strong-Field Enhancement and Suppression of Ionization with Short Laser Pulses
classification
⚛️ physics.optics
physics.atom-ph
keywords
ionizationatomiccoherentcontrolfieldlaserpulsesselective
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We experimentally demonstrate robust selective excitation and attenuation of atomic Rydberg level populations in sodium vapor (Na I) using intense laser pulses in the strong field limit ($> 10^{12} W/cm^{2}$). The coherent control of the atomic population and related ionization channels is realized for intensities above the over-the-barrier ionization intensity. A qualitative model predicts that this strong field coherent control arises through the manifestation of a Freeman resonance.
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