Skip to Main Content
Quarterly of Applied Mathematics

Quarterly of Applied Mathematics

Online ISSN 1552-4485; Print ISSN 0033-569X

   
 
 

 

Double-negative electromagnetic metamaterials due to chirality


Authors: Habib Ammari, Wei Wu and Sanghyeon Yu
Journal: Quart. Appl. Math. 77 (2019), 105-130
MSC (2010): Primary 35Q60, 35C20
DOI: https://doi.org/10.1090/qam/1516
Published electronically: September 17, 2018
MathSciNet review: 3897921
Full-text PDF

Abstract | References | Similar Articles | Additional Information

Abstract: The aim of this paper is to provide a mathematical theory for understanding the mechanism behind the double-negative refractive index phenomenon in chiral materials. The design of double-negative metamaterials generally requires the use of two different kinds of sub-wavelength resonators, which may limit the applicability of double-negative metamaterials. Herein, we rely on media that consist of only a single-type of dielectric resonant element, and show how the chirality of the background medium induces double-negative refractive index metamaterial, which refracts waves negatively, hence acting as a superlens. Using plasmonic dielectric particles, it is proved that both the effective electric permittivity and the magnetic permeability can be negative near some resonant frequencies. A justification of the approximation of a plasmonic particle in a chiral medium by the sum of a resonant electric dipole and a resonant magnetic dipole is provided. Moreover, the set of resonant frequencies is characterized. For an appropriate volume fraction of plasmonic particles with certain conditions on their configuration, a double-negative effective medium can be obtained when the frequency is near one of the resonant frequencies.


References [Enhancements On Off] (What's this?)

References

Similar Articles

Retrieve articles in Quarterly of Applied Mathematics with MSC (2010): 35Q60, 35C20

Retrieve articles in all journals with MSC (2010): 35Q60, 35C20


Additional Information

Habib Ammari
Affiliation: Department of Mathematics, ETH Zürich, Rämistrasse 101, CH-8092 Zürich, Switzerland
MR Author ID: 353050
Email: habib.ammari@math.ethz.ch

Wei Wu
Affiliation: Department of Mathematics, ETH Zürich, Rämistrasse 101, CH-8092 Zürich, Switzerland
MR Author ID: 1187163
Email: wei.wu@sam.math.ethz.ch

Sanghyeon Yu
Affiliation: Department of Mathematics, ETH Zürich, Rämistrasse 101, CH-8092 Zürich, Switzerland
MR Author ID: 959778
Email: sanghyeon.yu@sam.math.ethz.ch

Keywords: Plasmonic nanoparticles, sub-wavelength resonance, electric and magnetic resonant dipoles, chiral materials, effective medium theory, double-negative metamaterials
Received by editor(s): April 3, 2018
Published electronically: September 17, 2018
Article copyright: © Copyright 2018 Brown University