Transition between positive and negative permittivity in field-dependent metamaterial

Journal Article · Fri Apr 15 04:00:00 EDT 2011 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.3574921· OSTI ID:21560195

Sakai, Osamu ^[1]

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1. Department of Electronic Science and Engineering, Kyoto University, Kyoto-daigaku Katsura, Nishikyo-ku, Kyoto 615-8510 (Japan)

Permittivity in a metamaterial, which depends on the electric field of a propagating electromagnetic wave, induces anomalous responses against electromagnetic waves. When we consider discharge plasma an example of a metamaterial with field-dependent permittivity and negative permeability, a transition takes place between positive and negative permittivity, leading to reflection of waves in a low-field branch and transmission by the creation of a negative-refractive-index medium in a high-field branch. Nonlinearity in the phase space of the permittivity and the electric field in this system trigger this dynamic transition, which is suggested in the numerical results and clarified in an analytical model.

• OSTI ID: 21560195
• Journal Information: Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 8 Vol. 109; ISSN JAPIAU; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
DIELECTRIC PROPERTIES
ELECTRIC DISCHARGES
ELECTRIC FIELDS
ELECTRICAL PROPERTIES
ELECTROMAGNETIC RADIATION
MATHEMATICAL SPACE
NONLINEAR PROBLEMS
OPTICAL PROPERTIES
PERMEABILITY
PERMITTIVITY
PHASE SPACE
PHYSICAL PROPERTIES
PLASMA
RADIATIONS
REFLECTION
REFRACTIVE INDEX
SPACE
TRANSMISSION
WAVE PROPAGATION