Top-down, decoupled control of constitutive parameters inelectromagnetic metamaterials with dielectric resonators of internalanisotropy

Collection with item attached
2017
Item details URL
http://open-repository.kisti.re.kr/cube/handle/open_repository/486335.do
DOI
10.1038/srep42447
Title
Top-down, decoupled control of constitutive parameters inelectromagnetic metamaterials with dielectric resonators of internalanisotropy
Description
This study was supported by the National Research Foundation funded bythe Ministry of Science, ICT and Future Planning (Global FrontierProgram: No. NRF-2014M3A6B3063708 and Global Research Laboratory: No.NRF-2008-00580).
abstract
A meta-atom platform providing decoupled tuning for the constitutive wave parameters remains as a challenging problem, since the proposition of Pendry. Here we propose an electromagnetic meta-atom design of internal anisotropy (epsilon(r) not equal epsilon(theta)), as a pathway for decoupling of the effective-permittivity epsilon(eff) and permeability mu(eff). Deriving effective parameters for anisotropic meta-atom from the first principles, and then subsequent inverse-solving the obtained decoupled solution for a target set of epsilon(eff) and mu(eff), we also achieve an analytic, top- down determination for the internal structure of a meta-atom. To realize the anisotropy from isotropic materials, a particle of spatial permittivity modulation in r or theta direction is proposed. As an application example, a matched zero index dielectric meta-atom is demonstrated, to enable the super-funneling of a 50 lambda-wide flux through a sub-lambda slit; unharnessing the flux collection limit dictated by the lambda-zone.
provenance
Made available in Cube on 2018-09-28T16:04:50Z (GMT). No. of bitstreams: 0
language
English
author
Koo, Sukmo
Mason, Daniel R.
Kim, Yunjung
Park, Namkyoo
orcid
Park, Namkyoo/0000-0003-0197-7633
accessioned
2018-09-28T16:04:50Z
available
2018-09-28T16:04:50Z
issued
2017
citation
SCIENTIFIC REPORTS(7)
issn
2045-2322
uri
http://open-repository.kisti.re.kr/cube/handle/open_repository/486335.do
Funder
미래창조과학부
Funding Program
집단연구지원
Project ID
1711042017
Jurisdiction
Rep.of Korea
Project Name
Nano-Plasmonic Integrated Circuits for Ultrafast Information Processing
rights
openAccess
type
article


Files in This Item

There are no attached files.