Analysis of transmission line meta-materials at optical wavelength

Takeshi Baba; Teruya Ishihara

doi:10.1002/pssc.200879810

Analysis of transmission line meta-materials at optical wavelength

Takeshi Baba, Teruya Ishihara

SCI - Physics

Research output: Contribution to journal › Conference article

2 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	327-329
Number of pages	3
Journal	Physica Status Solidi (C) Current Topics in Solid State Physics
Volume	6
Issue number	1
DOIs	https://doi.org/10.1002/pssc.200879810
Publication status	Published - 2009 Apr 6
Event	8th International Conference on Excitonic Processes in Condensed Matter, EXCON'08 - Kyoto, Japan Duration: 2008 Jun 22 → 2008 Jun 27

ASJC Scopus subject areas

Condensed Matter Physics

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10.1002/pssc.200879810

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Baba, T., & Ishihara, T. (2009). Analysis of transmission line meta-materials at optical wavelength. Physica Status Solidi (C) Current Topics in Solid State Physics, 6(1), 327-329. https://doi.org/10.1002/pssc.200879810

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