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Nano Lett. 2009 Dec;9(12):4515-9. doi: 10.1021/nl902860d.

Direct coupling of plasmonic and photonic nanowires for hybrid nanophotonic components and circuits.

Author information

1
Department of Optical Engineering, State Key Laboratory of Modern Optical Instrumentation, Zhejiang University, Hangzhou 310027, China.

Abstract

We report direct coupling of plasmonic and photonic nanowires using ultracompact near-field interaction. Photon-plasmon coupling efficiency up to 80% with coupling length down to the 200 nm level is achieved between individual Ag and ZnO nanowires. Hybrid nanophotonic components, including polarization splitters, Mach-Zehnder interferometers, and microring cavities, are fabricated out of coupled Ag and ZnO nanowires. These components offer relatively low loss with subwavelength confinement; a hybrid nanowire microcavity exhibits a Q-factor of 520.

PMID:
19995088
DOI:
10.1021/nl902860d
[Indexed for MEDLINE]

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