Origin of the optical emission within the cavity mode of coupled quantum dot-cavity systems.
The origin of the emission within the optical mode of a coupled quantum dot-micropillar system is investigated. Time-resolved photoluminescence is performed on a large number of deterministically coupled devices in a wide range of temperature and detuning. The emission within the cavity mode is found to exhibit the same dynamics as the spectrally closest quantum dot state. Our observations indicate that fast dephasing of the quantum dot state is responsible for the emission within the cavity mode. An explanation for recent photon correlation measurements reported on similar systems is proposed.
Suffczyński
J
J
Laboratoire de Photonique et Nanostructures, LPN/CNRS, Route de Nozay, 91460 Marcoussis, France.
Dousse
A
A
Gauthron
K
K
Lemaître
A
A
Sagnes
I
I
Lanco
L
L
Bloch
J
J
Voisin
P
P
Senellart
P
P