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Title: Structures with negative index of refraction

Abstract

The invention provides simplified negative index materials (NIMs) using wire-pair structures, 4-gap single ring split-ring resonator (SRR), fishnet structures and overleaf capacitor SRR. In the wire-pair arrangement, a pair of short parallel wires and continuous wires are used. In the 4-gap single-ring SRR, the SRRs are centered on the faces of a cubic unit cell combined with a continuous wire type resonator. Combining both elements creates a frequency band where the metamaterial is transparent with simultaneously negative .di-elect cons. and .mu.. In the fishnet structure, a metallic mesh on both sides of the dielectric spacer is used. The overleaf capacitor SRR changes the gap capacities to small plate capacitors by making the sections of the SRR ring overlap at the gaps separated by a thin dielectric film. This technique is applicable to conventional SRR gaps but it best deploys for the 4-gap single-ring structures.

Inventors:
 [1];  [1];  [1];  [1];  [1]
  1. Ames, IA
Issue Date:
Research Org.:
Iowa State University Research Foundation, Inc. (Ames, IA)
Sponsoring Org.:
USDOE
OSTI Identifier:
1033605
Patent Number(s):
8054146
Application Number:
11/559,562
Assignee:
Iowa State University Research Foundation, Inc. (Ames, IA)
Patent Classifications (CPCs):
G - PHYSICS G02 - OPTICS G02B - OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES
DOE Contract Number:  
W-7405-ENG-82
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Soukoulis, Costas M, Zhou, Jiangfeng, Koschny, Thomas, Zhang, Lei, and Tuttle, Gary. Structures with negative index of refraction. United States: N. p., 2011. Web.
Soukoulis, Costas M, Zhou, Jiangfeng, Koschny, Thomas, Zhang, Lei, & Tuttle, Gary. Structures with negative index of refraction. United States.
Soukoulis, Costas M, Zhou, Jiangfeng, Koschny, Thomas, Zhang, Lei, and Tuttle, Gary. Tue . "Structures with negative index of refraction". United States. https://www.osti.gov/servlets/purl/1033605.
@article{osti_1033605,
title = {Structures with negative index of refraction},
author = {Soukoulis, Costas M and Zhou, Jiangfeng and Koschny, Thomas and Zhang, Lei and Tuttle, Gary},
abstractNote = {The invention provides simplified negative index materials (NIMs) using wire-pair structures, 4-gap single ring split-ring resonator (SRR), fishnet structures and overleaf capacitor SRR. In the wire-pair arrangement, a pair of short parallel wires and continuous wires are used. In the 4-gap single-ring SRR, the SRRs are centered on the faces of a cubic unit cell combined with a continuous wire type resonator. Combining both elements creates a frequency band where the metamaterial is transparent with simultaneously negative .di-elect cons. and .mu.. In the fishnet structure, a metallic mesh on both sides of the dielectric spacer is used. The overleaf capacitor SRR changes the gap capacities to small plate capacitors by making the sections of the SRR ring overlap at the gaps separated by a thin dielectric film. This technique is applicable to conventional SRR gaps but it best deploys for the 4-gap single-ring structures.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2011},
month = {11}
}

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