Optical emission from a charge-tunable quantum ring
نویسندگان
چکیده
منابع مشابه
Optical pumping of the electronic and nuclear spin of single charge-tunable quantum dots.
We present a comprehensive examination of optical pumping of spins in individual GaAs quantum dots as we change the net charge from positive to neutral to negative with a charge-tunable heterostructure. Negative photoluminescence polarization memory is enhanced by optical pumping of ground state electron spins, which we prove with the first measurements of the Hanle effect on an individual quan...
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Luca Sapienza,1,* Rima Al-Khuzheyri,2 Adetunmise Dada,2 Andrew Griffiths,3 Edmund Clarke,3 and Brian D. Gerardot2 1Department of Physics and Astronomy, University of Southampton, Southampton SO17 1BJ, United Kingdom 2Institute of Photonics and Quantum Sciences, SUPA, Heriot-Watt University, Edinburgh, United Kingdom 3EPSRC National Centre for III-V Technologies, University of Sheffield, United ...
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ژورنال
عنوان ژورنال: Nature
سال: 2000
ISSN: 0028-0836,1476-4687
DOI: 10.1038/35016030