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Plasmonic toroidal response of four U-shaped resonant rings at optical frequencies

  • Yao-Wei Huang
  • , Wei Ting Chen
  • , Pin Chieh Wu
  • , Yuan-Fong Chau
  • , Din Ping Tsai
  • , Vassili A. Fedotov
  • , Vassili Savinov
  • , Nikolay I. Zheludev

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

Abstract

The toroidal spectral responses of solenoid-like toroidal metamolecule integrated by four gold U-shaped split-ring resonators (SRRs) at optical frequencies are numerically studied. By analyzing the electromagnetic distribution in near-field region at the plasmonic resonances, we found toroidal and magnetic resonances generated by magnetic dipoles around the SRRs at frequency 112.3 THz and 122.1 THz, respectively. Downsizing the structure achieve observation of a plasmonic toroidal mode at optical frequencies in four U-shaped SRRs. © 2011 OSA.
Original languageEnglish
Title of host publicationFrontiers in Optics 2011
PublisherOptical Society of America (OSA)
ISBN (Electronic)9781557529176
DOIs
Publication statusPublished - Oct 2011
Externally publishedYes
EventFrontiers in Optics, FiO 2011 - San Jose, CA, United States
Duration: 16 Oct 2011 → 20 Oct 2011

Publication series

NameOptics InfoBase Conference Papers
ISSN (Electronic)2162-2701

Conference

ConferenceFrontiers in Optics, FiO 2011
PlaceUnited States
CitySan Jose, CA
Period16/10/11 → 20/10/11

Bibliographical note

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