Experimental Demonstration of Isotropic Negative Permeability in a Three-Dimensional Dielectric Composite
2008; American Physical Society; Volume: 101; Issue: 2 Linguagem: Inglês
10.1103/physrevlett.101.027402
ISSN1092-0145
AutoresQian Zhao, Lei Kang, Bing Du, Hongru Zhao, Qian Xie, Xiaozhong Huang, Bo Li, Jinling Zhou, Lei Li,
Tópico(s)Advanced Antenna and Metasurface Technologies
ResumoIsotropic negative permeability resulting from Mie resonance is demonstrated in a three-dimensional (3D) dielectric composite consisting of an array of dielectric cubes. A strong subwavelength magnetic resonance, corresponding to the first Mie resonance, was excited in dielectric cubes by electromagnetic wave. Negative permeability is verified in the magnetic resonance area via microwave measurement and the dispersion properties. The resonance relies on the size and permittivity of the cubes. It is promising for construction of novel isotropic 3D left-handed materials with a simple structure.
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