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Title 

A twin-free single-crystal Ag nanoplate plasmonic platform: hybridization of the optical nanoantenna and surface

Authors 

H LeeK Y JeongTaejoon KangM K SeoB Kim

Publisher 

Royal Society of Chemistry

Issue Date 

2014

Citation 

Nanoscale, vol. 6, no. 1, pp. 514-520

Abstract 

Surface plasmons based on metallic nanostructures enable light manipulation beyond the optical diffraction limit. We have epitaxially synthesized twin-free single-crystal Ag nanoplates on SrTiO3 substrates. Unlike the nanoplates synthesized in a solution phase, these nanoplates have perfectly clean surfaces as well as a quite large size of tens of micrometers. As-synthesized defect-free single-crystal Ag nanoplates have an atomically flat surface and sides with well-defined angles, allowing long distance propagation of surface plasmons and highly reliable plasmonic integration. By spatially separating receiving and transmitting antennas and plasmonically interfacing them, the signal quality of transmission/reception can be largely improved. Furthermore, by combining sub-dimensional nanostructures onto the two-dimensional space effective hierarchical plasmonic nano-complexes can be built up. Theoretical simulations well reproduced unique experimental results of coupling between SPPs and free-space radiation by the nanoplate antenna sides, low-loss long-range SPP propagation, and tunneling or scattering of SPPs at a nano-gap as well as a nano-structure introduced on the nanoplate. The single-crystal Ag nanoplate will find superb applications in plasmonic nano-circuitry and lab-on-a-chip for biochemical sensing.

ISSN 

2040-3364

Link 

http://dx.doi.org/10.1039/c3nr04492k http://dx.doi.org/10.1039/c3nr04492k

Appears in Collections

1. Journal Articles > Journal Articles

Registered Date

2019-05-02


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