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: Chapter in Book/Report/Conference proceedingConference contribution

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.

Original languageEnglish
Title of host publicationLaser Science, LS 2011
PublisherOptical Society of America (OSA)
ISBN (Print)9781557529176
DOIs
Publication statusPublished - 2011
EventLaser Science, LS 2011 - San Jose, CA, United States
Duration: 2011 Oct 162011 Oct 20

Publication series

NameOptics InfoBase Conference Papers
ISSN (Electronic)2162-2701

Conference

ConferenceLaser Science, LS 2011
CountryUnited States
CitySan Jose, CA
Period11-10-1611-10-20

All Science Journal Classification (ASJC) codes

  • Instrumentation
  • Atomic and Molecular Physics, and Optics

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