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.
Dalgarno
P A
PA
School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, United Kingdom.
Ediger
M
M
Gerardot
B D
BD
Smith
J M
JM
Seidl
S
S
Kroner
M
M
Karrai
K
K
Petroff
P M
PM
Govorov
A O
AO
Warburton
R J
RJ