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Title: Functional composites of plasmas and metamaterials: Flexible waveguides, and variable attenuators with controllable phase shift

Numerical predictions and experimental results in this study verify that plasmas with negative permittivity work as functional media for electromagnetic waves and that their composites with metallic metamaterials show further extraordinary properties. Chain structures of individual plasmas with negative permittivity, forming a straight line and a L-shaped bent line, serve flexible waveguides via coupling structures of localized surface waves standing around each plasma. Further progresses as wave controllers are achievable in an array of the composites of plasmas and micro metallic resonators; functions of phase shifters and attenuators are individually controlled, with rotation of working points on the complex refractive index plane by varying gas conditions and permeability modulation. Such proposed sets of flexible combination will lead to advanced scientific products with novel functions.
Authors:
; ;  [1] ;  [1] ;  [2]
  1. Department of Electronic Science and Engineering, Kyoto University, Kyoto-daigaku Katsura, Nishikyo-ku, Kyoto 615-8510 (Japan)
  2. (Japan)
Publication Date:
OSTI Identifier:
22227987
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 20; Journal Issue: 7; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; 36 MATERIALS SCIENCE; COMPOSITE MATERIALS; ELECTROMAGNETIC RADIATION; MODULATION; PERMEABILITY; PERMITTIVITY; PHASE SHIFT; PLASMA; REFRACTIVE INDEX; RESONATORS; WAVE PROPAGATION; WAVEGUIDES