S-polarization Brewster's angle of stratified metal-dielectric metamaterial in optical regime

Ryosuke Watanabe, Masanobu Iwanaga, Teruya Ishihara

研究成果: Article

14 引用 (Scopus)

抜粋

We demonstrate that the optical reflectivity for s-polarized light vanishes at a certain angle in a stratified metal-dielectric metamaterial numerically and experimentally. The metamaterial consists of a unit cell where a Ag layer of 30 nm thickness is sandwiched by Al2O3 layers of 60 nm thickness. In order to understand the phenomenon in terms of effective permittivity and permeability, we extended a field-sampling method. The permeability is found to be significantly different from unity, which is the origin of Brewster's angle for s-polarization. The microscopic field distribution is readily coarse grained with the effective optical parameters. The present result is a manifestation of the magnetic response in the optical regime.

元の言語English
ページ(範囲)2696-2701
ページ数6
ジャーナルPhysica Status Solidi (B) Basic Research
245
発行部数12
DOI
出版物ステータスPublished - 2008 12 1

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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