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

Ryosuke Watanabe, Masanobu Iwanaga, Teruya Ishihara

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)2696-2701
Number of pages6
JournalPhysica Status Solidi (B) Basic Research
Volume245
Issue number12
DOIs
Publication statusPublished - 2008 Dec 1

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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