Transient nonlinear optical spectroscopy studies involving biexciton coherence in single quantum dots

Xiaoqin Li, Yanwen Wu, Xiaodong Xu, D. G. Steel, and D. Gammon

Phys. Rev. B 73, 153304 – Published 14 April 2006

Abstract

Transient differential transmission measurements were performed to study coherent dynamics involving the biexciton resonance confined in a single $GaAs$ quantum dot. When laser pulses with sufficient bandwidth were tuned to cover both the exciton and biexciton transitions, an oscillatory behavior in the probe transmission was observed. These oscillations persist only as long as the pump and probe pulses overlap in time, in contrast to the usual quantum beat phenomena.

Received 22 June 2005

DOI:https://doi.org/10.1103/PhysRevB.73.153304

Authors & Affiliations

Xiaoqin Li¹, Yanwen Wu¹, Xiaodong Xu¹, D. G. Steel¹, and D. Gammon²

¹Harrison M. Randall Laboratory of Physics, The University of Michigan, Ann Arbor, Michigan 48109-1120, USA
²Naval Research Laboratory, Washington, DC 20375-5347, USA

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Vol. 73, Iss. 15 — 15 April 2006

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Physical Review B

covering condensed matter and materials physics