Optical toroidal response in three-dimensional plasmonic metamaterial

被引：3

作者：

Liao, Chun Yen ^{[1
]}

Chen, Mu Ku ^{[1
]}

Huang, Yao-Wei ^{[1
]}

Chen, Wei Ting ^{[1
]}

Wu, Pin Chieh ^{[1
]}

Tsai, Wei-Yi ^{[1
]}

Lin, Hao Tsun ^{[1
]}

Huang, Yi-Teng ^{[1
]}

Chen, Ting-Yu ^{[1
]}

Chen, Jia-Wern ^{[1
]}

Savinov, Vassili ^{[2
,3
]}

Zheludev, Nikolay I. ^{[2
,3
]}

Tsai, Din Ping ^{[1
,4
]}

机构：

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

[2] Univ Southampton, Optoelect Res Ctr, Southampton SO17 1BJ, Hants, England

[3] Univ Southampton, Ctr Photon Metamat, Southampton SO17 1BJ, Hants, England

[4] Acad Sinica, Res Ctr Appl Sci, Taipei 115, Taiwan

来源：

PLASMONICS: METALLIC NANOSTRUCTURES AND THEIR OPTICAL PROPERTIES XIII | 2015年 / 9547卷

关键词：

Toroidal resonance; metamaterials; split-ring resonator; TRANSPARENCY;

D O I：

10.1117/12.2189052

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Toroidal dipole moments, the third kind of fundamental dipole moment, have unusual electromagnetic properties different from the electric and magnetic multipoles. We fabricate a new type of 3D plasmonic toroidal metamaterial by using mutual coupling between dumbbell-shaped gold apertures with vertical split-ring resonators (VSRRs) at optical frequency. The radiated power of multipole moments are calculated and analyzed to improve the meta-system is dominated by the toroidal dipole moment. This result paves a way for practical application on metamaterial based devices, such as biosensor and lasing spaser.

引用

页数：4

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