Asymmetric split nanorings for Fano induced plasmonic sensor in visible region

被引：4

作者：

Ding, Yao ^{[1
]}

Liao, Zhongwei ^{[2
]}

机构：

[1] Chongqing Coll Elect Engn, Coll Gen Educ, Chongqing 401331, Peoples R China

[2] Chongqing Univ, Coll Phys, Soft Matter & Interdisciplinary Res Inst, Chongqing 401331, Peoples R China

来源：

PHYSICA B-CONDENSED MATTER | 2015年 / 464卷

关键词：

Fano resonance; Plasmonic sensor; Hybridization; Rectangular split nanorings; RAMAN-SCATTERING; RESONANCE; SPECTROSCOPY; MOLECULES;

D O I：

10.1016/j.physb.2014.12.008

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Fano resonance exhibits high sensitivity and promising applications in the field of ultra sensitive plasmonic sensor. In this work, the Fano lineshape in spectra of gold rectangular split nanorings (RSNRs) is investigated using the finite element method. The simulation results figure out the Fano lineshape could be modulated by the positions of split gap in RSNRs for symmetry breaking, which is explained by the plasmonic hybridization theory. Furthermore, the high order bonding plasmon mode I-I in absorption spectra exhibits high sensitivity in visible region. Our investigations here are beneficial for the design and application of ultra-sensitive LSPR sensor in visible region. (C) 2014 Elsevier B.V. All rights reserved

引用

页码：51 / 56

页数：6

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