Optical response of tightly coupled THz metamaterials

Ji Hun Kang, Q. Han Park

Research output: Chapter in Book/Report/Conference proceedingConference contribution


In this paper, we theoretically study optical responses of tightly-coupled terahertz metamaterial. Unlike loosely-coupled one, tightly-coupled metamaterials exhibit resonant optical responses that are highly dependent on the interaction between each unit resonators. In order to predict optical response and spectral behavior of effective parameters of the metamaterials, a model based on coupled-mode theory is applied. Resonant optical response is shown to be highly dependent on the gap-size between the resonators which relates to the inter-unit coupling, and we show that this dependency implies the possibility of miniaturized metamaterials.

Original languageEnglish
Title of host publicationUltrafast Phenomena and Nanophotonics XVIII
Publication statusPublished - 2014
EventUltrafast Phenomena and Nanophotonics XVIII - San Francisco, CA, United States
Duration: 2014 Feb 22014 Feb 5

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


OtherUltrafast Phenomena and Nanophotonics XVIII
Country/TerritoryUnited States
CitySan Francisco, CA


  • FDTD
  • coupled-mode theory
  • effective medium
  • metamaterials
  • resonator
  • terahertz

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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