Strong bound exciton-photon coupling in ZnO whispering gallery microcavity | Zendy

Liaoxin Sun | Zendy; Hongxing Dong | Zendy; Wei Xie | Zendy; Jian Lü | Zendy; Zhanghai Chen | Zendy; Xuechu Shen | Zendy; Wei Lü | Zendy

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Strong bound exciton-photon coupling in ZnO whispering gallery microcavity

Author(s) -

Liaoxin Sun,

Hongxing Dong,

Wei Xie,

Jian Lü,

Zhanghai Chen,

Xuechu Shen,

Wei Lü

Publication year - 2013

Publication title -

optics express

Language(s) - Uncategorized

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.21.030227

Subject(s) - exciton , whispering gallery wave , polariton , cathodoluminescence , whispering gallery , optical microcavity , physics , biexciton , photon , coupling (piping) , optics , bound state , cavity quantum electrodynamics , optoelectronics , materials science , atomic physics , condensed matter physics , laser , luminescence , quantum , quantum mechanics , open quantum system , metallurgy

We report the cathodoluminescence (CL) study of bound-exciton-polaritons in ZnO whispering gallery (WG) microcavity. Thanks to the very high spatial resolution (: 100 nm) of CL technique, a scanning CL mapping along the tapered ZnO nanowire is achieved. We observe a clear anticrossing behavior which demonstrates the strong coupling between cavity mode and bound-excitons. Coupled oscillator model including both bound excitons and free excitons fits well with the experimental results. The energy splitting of bound-exciton-polaritons:2.6 meV is obtained.

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