Analysis of transmission line meta-materials at optical wavelength

Takeshi Baba, Teruya Ishihara

研究成果: Conference article

2 被引用数 (Scopus)


Following the transmission line formalism, we design a metamaterial structure that exhibts negative refraction in the red part of the visible spectrum.The structure is a waveguide consisting of an Al2O 3 top layer, 2D array of Au dots, an Al2O3 spacer and a Ag ground plane. The Au dot array with period of 250 nm were patterned by an electron beam lithography technique. We confirm experimentally and numerically that threre is a mode shifting to the lower energy side as the wavevector increases. Both permittivity and permeability are found to be negative in that region. Focussing effect of a flat structure, which is a characteristic feature of a negative index metamaterial, is also confirmed with FDTD caculation.

ジャーナルPhysica Status Solidi (C) Current Topics in Solid State Physics
出版物ステータスPublished - 2009 4 6
イベント8th International Conference on Excitonic Processes in Condensed Matter, EXCON'08 - Kyoto, Japan
継続期間: 2008 6 222008 6 27

ASJC Scopus subject areas

  • Condensed Matter Physics

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