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Proceedings Paper

Optical toroidal response in three-dimensional plasmonic metamaterial
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Paper Abstract

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.

Paper Details

Date Published: 28 August 2015
PDF: 4 pages
Proc. SPIE 9547, Plasmonics: Metallic Nanostructures and Their Optical Properties XIII, 954724 (28 August 2015); doi: 10.1117/12.2189052
Show Author Affiliations
Chun Yen Liao, National Taiwan Univ. (Taiwan)
Mu Ku Chen, National Taiwan Univ. (Taiwan)
Yao-Wei Huang, National Taiwan Univ. (Taiwan)
Wei Ting Chen, National Taiwan Univ. (Taiwan)
Pin Chieh Wu, National Taiwan Univ. (Taiwan)
Wei-Yi Tsai, National Taiwan Univ. (Taiwan)
Hao Tsun Lin, National Taiwan Univ. (Taiwan)
Yi-Teng Huang, National Taiwan Univ. (Taiwan)
Ting-Yu Chen, National Taiwan Univ. (Taiwan)
Jia-Wern Chen, National Taiwan Univ. (Taiwan)
Vassili Savinov, Univ. of Southampton (United Kingdom)
Nikolay I. Zheludev, Univ. of Southampton (United Kingdom)
Din Ping Tsai, National Taiwan Univ. (Taiwan)
Academia Sinica (Taiwan)

Published in SPIE Proceedings Vol. 9547:
Plasmonics: Metallic Nanostructures and Their Optical Properties XIII
Allan D. Boardman; Din Ping Tsai, Editor(s)

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