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Simultaneous Control of Time-Dependent Population Transfer Dynamics and Wave-Packet Quantum Interferences in Li2 by Shaped Ultrafast Pulses

Published

Author(s)

J B. Ballard, H U. Stauffer, E Mirowski, S R. Leone

Abstract

Novel ultrafast pulse shapes are used to control simultaneously the optimal population transfer coefficients and rotational wave packet quaninterferences in the E 1ςg+ state of Li2 (VE=9, JE=27 & 29). By dividing the spectral bandwidth of the ultrafast pulses into two control domains centered on each resonant wavelength, the population transfer coefficients can be manipulated independently of the wave packet interferences to maximize the Li2 photoionization yield at arbitrary short pump-probe time delays. By setting the pump and probe polarizations to be eitherparallel or at the magic angle (-55 ), the signal reflects the population transfer coefficients with or without wave packet interferencesrespectively. The effects of resonant and non-resonant frequencies are separately established and are quantified. It is estimated that up to 90% of the possible nonresonant Rabi oscillations can be brought into phase simultaneously for each rovibrational state in the wave packet, while at the same time a constant phase offset added to one of the control domains establishes the phase of the wave packet interference.
Citation
Physical Review A (Atomic, Molecular and Optical Physics)
Volume
66
Issue
No. 4

Keywords

coherent control, population transfer, Rabi oscillation, wave packet

Citation

Ballard, J. , Stauffer, H. , Mirowski, E. and Leone, S. (2002), Simultaneous Control of Time-Dependent Population Transfer Dynamics and Wave-Packet Quantum Interferences in Li<sub>2</sub> by Shaped Ultrafast Pulses, Physical Review A (Atomic, Molecular and Optical Physics) (Accessed May 30, 2024)

Issues

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Created September 30, 2002, Updated October 12, 2021