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A flexible metamaterial with negative refractive index at visible wavelength

  • Muhan Choi
  • , Jong Ho Choe
  • , Byungsoo Kang
  • , Choon Gi Choi
  • Electronics and Telecommunications Research Institute
  • Korea Advanced Institute of Science and Technology

Research output: Contribution to journalArticlepeer-review

24 Scopus citations

Abstract

In this paper, we demonstrated a realization of a flexible metamaterial with negative refractive index operating at visible wavelength. With the help of Finite-Difference Time-Domain (FDTD) method, we could establish design rules for the metamaterial and analyze the characteristics of it. To this end, the fishnet structure with the unit cell size 185 nm by 240 nm was fabricated. Due to the polymer dielectric spacer between the metal-layers, the metamaterial is freestanding without base substrate and additional backside etching process. Crown

Original languageEnglish
Pages (from-to)1723-1727
Number of pages5
JournalCurrent Applied Physics
Volume13
Issue number8
DOIs
StatePublished - 2013

Keywords

  • Fishnet structure
  • Flexible metamaterial
  • Focused ion beam
  • Negative refractive index
  • Visible wavelength

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