%0 Journal Article
%T Dynamic Stark Effect in Strongly Coupled Microcavity Exciton-Polaritons
%A Alex Hayat
%A Christoph Lange
%A Lee A. Rozema
%A Ardavan Darabi
%A Henry M. van Driel
%A Aephraim M. Steinberg
%A Bryan Nelsen
%A David W. Snoke
%A Loren N. Pfeiffer
%A Kenneth W. West
%J Physics
%D 2012
%I arXiv
%R 10.1103/PhysRevLett.109.033605
%X We present experimental observations of a non-resonant dynamic Stark shift in strongly coupled microcavity quantum well exciton-polaritons - a system which provides a rich variety of solid-state collective phenomena. The Stark effect is demonstrated in a GaAs/AlGaAs system at 10K by femtosecond pump-probe measurements, with the blue shift approaching the meV scale for a pump fluence of 2 mJcm^-2 and 50 meV red detuning, in good agreement with theory. The energy level structure of the strongly coupled polariton Rabi-doublet remains unaffected by the blue shift. The demonstrated effect should allow generation of ultrafast density-independent potentials and imprinting well-defined phase profiles on polariton condensates, providing a powerful tool for manipulation of these condensates, similar to dipole potentials in cold atom systems.
%U http://arxiv.org/abs/1205.6879v1