Nonlinear optical response and exciton dephasing in quantum dots

E. A. Muljarov; R. Zimmermann

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Nonlinear optical response and exciton dephasing in quantum dots

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arxiv cond-mat/0603052 v1 pith:5XBMBATE submitted 2006-03-02 cond-mat.mes-hall

Nonlinear optical response and exciton dephasing in quantum dots

E. A. Muljarov , R. Zimmermann This is my paper

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The full time-dependent four-wave mixing polarization in quantum dots is microscopically calculated, taking into account acoustic phonon-assisted transitions between different exciton states of the dot. It is shown that quite different dephasing times of higher exciton states in pancake anisotropic InGaAs quantum dots are responsible for the experimentally observed [1] double-exponential decay in the photon echo signal.

Nonlinear optical response and exciton dephasing in quantum dots

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