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Controlled generation of neutral, negatively-charged and positively-charged excitons in the same single quantum dot - art. no. 2119209

Abstract:

We report the controlled generation of neutral, negatively-charged and positively-charged excitons in the same single InAs quantum dot. The control parameters are a vertical electric field applied to a capacitor-like structure, in which the quantum dots are embedded, and optical pump power. The strong Coulomb blockade in quantum dots can be exploited to control the charge of excitons containing one hole, the neutral exciton, X0, and singly negatively charged exciton, X1-. We show here how thi...

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Publication status:
Published

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Publisher copy:
10.1063/1.1937996

Authors


Dalgarno, PA More by this author
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Institution:
University of Oxford
Department:
Oxford, MPLS, Materials
Gerardot, BD More by this author
Warburton, RJ More by this author
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Journal:
APPLIED PHYSICS LETTERS
Volume:
86
Issue:
21
Pages:
1-3
Publication date:
2005-05-23
DOI:
ISSN:
0003-6951
URN:
uuid:fe397fec-c8a8-4e0e-8937-cc25f547e805
Source identifiers:
135246
Local pid:
pubs:135246
Language:
English

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