Strong coupling of a plasmonic nanoparticle to a semiconductor nanowire-Reference-Cited by-同舟云学术

Strong coupling of a plasmonic nanoparticle to a semiconductor nanowire

Published:2021-07-22 Issue:11 Volume:10 Page:2875-2881
ISSN:2192-8614
Container-title:Nanophotonics
language:en
Short-container-title:

Author:

Jin Yingying¹,Yang Liu¹,Pan Chenxinyu¹,Shi Zhangxing¹,Cui Bowen¹,Xu Peizhen¹,Yang Yuxin¹,Zhou Ning¹,Guo Xin²^ORCID,Wang Pan¹,Tong Limin³

Affiliation:

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

2. Interdisciplinary Center for Quantum Information, State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering , Zhejiang University , Hangzhou 310027 , China

3. Interdisciplinary Center for Quantum Information, State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, Zhejiang University, Hangzhou 310027, China; and Collaborative Innovation Center of Extreme Optics, Shanxi University , Taiyuan 030006 , China

Abstract

Abstract By placing a single Au nanoparticle on the surface of a cadmium sulfide (CdS) nanowire, we demonstrate strong coupling of localized surface plasmon resonance (LSPR) modes in the nanoparticle and whispering gallery modes (WGMs) in the nanowire. For a 50-nm-diameter Au-nanosphere particle, strong coupling occurs when the nanowire diameter is between 300 and 600 nm, with a mode splitting up to 80 meV. Using a temperature-induced spectral shift of the resonance wavelength, we also observe the anticrossing behavior in the strongly coupled system. In addition, since the Au nanosphere has spherical symmetry, the supported LSPR mode can be selectively coupled with transverse electric (TE) and transverse magnetic (TM) WGMs in the nanowire. The ultracompact strong-coupling system shown here may provide a versatile platform for studying hybrid “photon–plasmon” nanolasers, nonlinear optical devices, and nanosensors.

Publisher

Walter de Gruyter GmbH

Subject

Electrical and Electronic Engineering,Atomic and Molecular Physics, and Optics,Electronic, Optical and Magnetic Materials,Biotechnology

Link

https://www.degruyter.com/document/doi/10.1515/nanoph-2021-0214/pdf

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