Electromagnetic concentrators with reduced material parameters based on coordinate transformation

Omni-directional electromagnetic field concentrators have been recently reported by Marco Rahm et al. [Photon. Nanostruct.: Fundam. Appl. 6, 87 (2008)] based on form-invariant coordinate transformations related to its Jacobi transformation matrix. Using transverse-electric wave illumination, we redu...

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Bibliographic Details
Published in:Optics express 2008-07, Vol.16 (15), p.11431-11437
Main Authors: Wang, Wei, Lin, Lan, Ma, Junxian, Wang, Changtao, Cui, Jianhua, Du, Chunlei, Luo, Xiangang
Format: Article
Language:English
Subjects:
Computer Simulation
Computer-Aided Design
Electromagnetic Phenomena - instrumentation
Equipment Design
Equipment Failure Analysis
Light
Models, Theoretical
Optics and Photonics - instrumentation
Scattering, Radiation
Transducers
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Summary:Omni-directional electromagnetic field concentrators have been recently reported by Marco Rahm et al. [Photon. Nanostruct.: Fundam. Appl. 6, 87 (2008)] based on form-invariant coordinate transformations related to its Jacobi transformation matrix. Using transverse-electric wave illumination, we reduced the complex material parameters of the concentrator for future practical implementation. Concentrators with different set of permittivity and permeability tensors are proposed. The electromagnetic concentrating performance and the scattering properties at the inner and outer boundary of these concentrators are theoretically and numerically analyzed. Finally we obtain a set of material tensors for a concentrator that simultaneously has perfect matched interior and exterior interfaces.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.16.011431