Magnetic excitation of magnetic resonance in metamaterials at far-infrared frequencies

Atsushi Ishikawa, Takuo Tanaka, Satoshi Kawata

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

The authors experimentally demonstrated magnetically excited magnetic resonances with negative magnetic permeability in a metamaterial composed of an array of silver rod pairs. In transmission spectroscopy of the metamaterial, by employing oblique incidence, an incident-magnetic-field-dependent absorption feature was clearly observed at 18 THz. The experimental results directly prove that the rod pair structure interacted with the magnetic field of the incident light, producing magnetic resonance. The experimental results were in good agreement with a numerical simulation suggesting that the value of μRe of the silver rod pair array changes from -0.29 to 2.26 at resonance.

Original languageEnglish
Article number113118
JournalApplied Physics Letters
Volume91
Issue number11
DOIs
Publication statusPublished - Sep 21 2007

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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