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

Published

October 1, 2002

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 ¹ς_g⁺ state of Li₂ (V_E=9, J_E=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

Pub Type

Journals

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 Li₂ by Shaped Ultrafast Pulses, Physical Review A (Atomic, Molecular and Optical Physics) (Accessed September 7, 2024)