Fast electro-optics of a single self-assembled quantum dot in a charge-tunable device

Prechtel, Jonathan H. and Dalgarno, Paul A. and Hadfield, Robert H. and McFarlane, Jamie and Badolato, Antonio and Petroff, Pierre M. and Warburton, Richard J.. (2012) Fast electro-optics of a single self-assembled quantum dot in a charge-tunable device. Journal of applied physics, Vol. 111, H. 4 , 043112.

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Official URL: http://edoc.unibas.ch/dok/A6083409

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The response of a single InGaAs quantum dot, embedded in a miniaturized charge-tunable device, to an applied GHz bandwidth electrical pulse is investigated via its optical response. Quantum-dot response times of 1.0 +/- 0.1 ns are characterized via several different measurement techniques, demonstrating GHz-bandwidth electrical control. Furthermore, a novel optical detection technique based on resonant electron-hole pair generation in the hybridization region is used to map fully the voltage pulse experienced by the quantum dot, showing, in this case, a simple exponential rise.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Experimental Physics (Warburton)
UniBasel Contributors:Warburton, Richard J
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:American Institute of Physics
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:24 May 2013 09:22
Deposited On:24 May 2013 09:04

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