Coupling effect between two adjacent chiral structure layers

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Li Z., Caglayan H., Colak E., Zhou J., Soukoulis C. M., Ozbay E.

OPTICS EXPRESS, cilt.18, sa.6, ss.5375-5383, 2010 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 18 Sayı: 6
  • Basım Tarihi: 2010
  • Doi Numarası: 10.1364/oe.18.005375
  • Dergi Adı: OPTICS EXPRESS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.5375-5383
  • Abdullah Gül Üniversitesi Adresli: Hayır

Özet

A pair of mutually twisted metallic cross-wires can produce giant optical activity. When this single chiral layer is stacked layer by layer in order to build a thick chiral metamaterial, strong coupling effects are found between the two adjacent chiral layers. We studied these coupling effects numerically and experimentally. The results show that the existing coupling between chiral layers can make the chiral properties of a two-layered chiral metamaterial different from the constituting single chiral layers. It is explained qualitatively that the coupling effects are generated from the coupling of metallic cross-wires belonging to different chiral layers. Our experimental results are in good agreement with the simulation results. (C) 2010 Optical Society of America