Room temperature strong coupling effects from single ZnO nanowire microcavity | Zendy

Ayan Kumar Das | Zendy; Junseok Heo | Zendy; Adrian Bayraktaroglu | Zendy; Wei Guo | Zendy; Tien Khee Ng | Zendy; Jamie Phillips | Zendy; Boon S. Ooi | Zendy; P. Bhattacharya | Zendy

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Room temperature strong coupling effects from single ZnO nanowire microcavity

Author(s) -

Ayan Kumar Das,

Junseok Heo,

Adrian Bayraktaroglu,

Wei Guo,

Tien Khee Ng,

Jamie Phillips,

Boon S. Ooi,

P. Bhattacharya

Publication year - 2012

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.20.011830

Subject(s) - polariton , materials science , condensed matter physics , relaxation (psychology) , dispersion (optics) , dielectric , nanowire , coupling (piping) , optoelectronics , molecular physics , optics , physics , psychology , social psychology , metallurgy

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.

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