A NEW TYPE OF OPTICAL ANTENNA: PLASMONICS NANOSHELL BOWTIE ANTENNA WITH DIELECTRIC HOLE

被引：54

作者：

Chau, Y-F. ^{[1
]}

Yeh, H-H. ^{[1
]}

Tsai, D. P. ^{[2
]}

机构：

[1] Ching Yun Univ, Dept Elect Engn, Jhongli 320, Taiwan

[2] Natl Taiwan Univ, Dept Phys, Taipei 10617, Taiwan

来源：

JOURNAL OF ELECTROMAGNETIC WAVES AND APPLICATIONS | 2010年 / 24卷 / 11-12期

关键词：

NANOANTENNAS; NANOPARTICLE;

D O I：

10.1163/156939310792149588

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

080906 [电磁信息功能材料与结构]; 082806 [农业信息与电气工程];

摘要：

We first investigate plasmonic nanoshell bowtie nanoantenna with dielectric hole that interact with incident plane wave of transverse-magnetic polarization by use of the finite element method. The influence of the dielectric hole in nanoshell on the antenna field enhancement and spectral response is discussed. Results show that the proposed plasmonic nanoshell bowtie antenna can confine the field in a volume well below the diffraction limit and exhibit tunable surface plasmon resonances in a wider range of wavelength that are not observed for the conventional solid-gold case with the same volume. This offers a new possibility to further optimize the performance of optical nanoantenna.

引用

页码：1621 / 1632

页数：12

共 26 条

[1]

Tuning the scattering response of optical nanoantennas with nanocircuit loads [J].