Optically induced hybridization of a quantum dot state with a filled continuum.
We present an optical signature of a hybridization between a localized quantum dot state and a filled continuum. Radiative recombination of the negatively charged trion in a single quantum dot leaves behind a single electron. We show that in two regions of vertical electric field, the electron hybridizes with a continuum through a tunneling interaction. The hybridization manifests itself through an unusual voltage dependence of the emission energy and a non-Lorentzian line shape, features which we reproduce with a theory based on the Anderson Hamiltonian.
School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, United Kingdom.
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PA
Dalgarno
M
M
Ediger
B D
BD
Gerardot
J M
JM
Smith
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S
Seidl
M
M
Kroner
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K
Karrai
P M
PM
Petroff
A O
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Govorov
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RJ
Warburton