Coherent Control of spin-orbit precession with shaped laser pulses

Details Coherent Control of spin-orbit precession with shaped laser pulses Coherent Control of spin-orbit precession with shaped laser pulses

2008-02-21

arxiv.org/abs/0802.2986v1

Journal of Physics B: Atomic, Molecular and Optical Physics 41 (2008) 074023

Physics

Atomic Physics

Scientific paper

10.1088/0953-4075/41/7/074023

Spin precession in Rubidium atoms is investigated through a pump-probe technique. The excited wave packet corresponds to a precession of spin and orbital angular momentum around the total angular momentum. We show that using shaped laser pulses allows us to control this dynamics. With a Fourier transform limited pulse, the wave packet is initially prepared in the bright state (coupled to the initial state) whereas a pulse presenting a $\pi $ step in the spectral phase prepares the wave packet in the dark state (uncoupled to the initial state).

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