Coupling effects in 3D plasmonic structures templated by &ITMorpho &ITbutterfly wings

被引：9

作者：

He, Jiaqing ^{[1
]}

Shen, Qingchen ^{[1
]}

Yang, Shuai ^{[2
]}

He, Gufeng ^{[2
]}

Tao, Peng ^{[1
]}

Song, Chengyi ^{[1
]}

Wu, Jianbo ^{[1
]}

Deng, Tao ^{[1
]}

Shang, Wen ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, State Key Lab Met Matrix Composites, 800 Dong Chuan Rd, Shanghai 200240, Peoples R China

[2] Shanghai Jiao Tong Univ, Sch Elect Informat & Elect Engn, 800 Dong Chuan Rd, Shanghai 200240, Peoples R China

来源：

NANOSCALE | 2018年 / 10卷 / 02期

基金：

国家重点研发计划; 中国国家自然科学基金;

关键词：

BUTTERFLY WINGS; PARTICLE; NANOSTRUCTURES; FABRICATION; SERS;

D O I：

10.1039/c7nr07331c

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

This paper presents the study of the coupling effects of three dimensional (3D) plasmonic nanostructures templated by Morpho butterfly wings. Different from the random deposition of metallic nanoparticles (NPs) or conformal coating of metallic layers on butterfly wings reported previously, the 3D plasmonic nanostructures studied in this work consist of gold (Au) nanostrips quasi-periodically arranged in 3D, which allows us to investigate the plasmonic coupling effects. Through refractive index (RI) matching, the plasmonic coupling can be differentiated from the optical contribution of butterfly wings. By tuning the deposition thickness of Au from 30 to 90 nm, the plasmonic coupling effects between the 3D Au nanostrips are gradually enhanced. In particular, the near-field coupling results in two resonant modes and enhances the surface-enhanced Raman scattering (SERS) signals.

引用

页码：533 / 537

页数：5

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