Semiconductor-enhanced Raman scattering sensors via quasi-three-dimensional Au/Si/Au structures

We present a feasible way to strongly enhance Raman signals via introducing an ultra-thin dielectric film in the dual-layer plasmonic hotspots structure, which forms a quasi-three-dimensional structure. The Raman intensity was obtained with an enhancement factor of 735% for the dual-layer metal stru...

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Bibliographic Details
Main Authors: Liu Guiqiang, Liu Yi, Tang Li, Liu Xiaoshan, Fu Guolan, Liu Zhengqi
Format: Article
Language:English
Published: De Gruyter 2019-05-01
Series:Nanophotonics
Subjects:
Online Access:https://doi.org/10.1515/nanoph-2019-0078