Room temperature strong coupling effects from single ZnO nanowire microcavity.
Strong coupling effects in a dielectric microcavity with a single ZnO nanowire embedded in it have been investigated at room temperature. A large Rabi splitting of ~100 meV is obtained from the polariton dispersion and a non-linearity in the polariton emission characteristics is observed at room temperature with a low threshold of 1.63 μJ/cm(2), which corresponds to a polariton density an order of magnitude smaller than that for the Mott transition. The momentum distribution of the lower polaritons shows evidence of dynamic condensation and the absence of a relaxation bottleneck. The polariton relaxation dynamics were investigated by time-resolved measurements, which showed a progressive decrease in the polariton relaxation time with increase in polariton density.
Center for Photonic and Multiscale Nanomaterials, Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, Michigan 48109, USA.
Ayan
A
Das
Junseok
J
Heo
Adrian
A
Bayraktaroglu
Wei
W
Guo
Tien-Khee
TK
Ng
Jamie
J
Phillips
Boon S
BS
Ooi
Pallab
P
Bhattacharya
D004553:Electric Conductivity; D008422:Materials Testing; D008904:Miniaturization; D043942:Nanotubes / Q000737:chemistry* / Q000648:ultrastructure*; D020349:Surface Plasmon Resonance / Q000379:methods*; D013696:Temperature; D015034:Zinc Oxide / Q000737:chemistry*
D015034:Zinc Oxide