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arXiv · 0812.3008

Selective Optical Charge Generation, Storage and Readout in a Single Self Assembled Quantum Dot

D. Heiss·V. Jovanov·M. Caesar·M. Bichler·G. Abstreiter·J. J. Finley
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Abstract

We report the investigation of a single quantum dot charge storage device. The device allows selective optical charging of a single dot with electrons, storage of these charges over timescales much longer than microseconds and reliable optical readout of the charge occupancy using a time gated photoluminescence technique. This device enables us to directly investigate the electric field dependent tunneling escape dynamics of electrons at high electric fields over timescales up to 4 us. The results demonstrate that such structures and measurement techniques can be used to investigate charge and spin dynamics in single quantum dots over microsecond timescales.

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D. Heiss, V. Jovanov, M. Caesar, M. Bichler, G. Abstreiter, J. J. Finley. 2009-01-20. Selective Optical Charge Generation, Storage and Readout in a Single Self Assembled Quantum Dot. https://doi.org/10.1063/1.3079658

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