期刊
PHYSICAL REVIEW LETTERS
卷 112, 期 3, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.112.033902
关键词
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资金
- US Office of Naval Research (ONR) Multidisciplinary University Research Initiative (MURI) [N00014-10-1-0942]
- Grant FPI of GV
- Spanish MICINN [CONSOLIDER EMET CSD2008-00066, TEC2011-28664-C02-02]
The ability to manufacture metamaterials with exotic electromagnetic properties has potential for surprising new applications. Here we report how a specific type of metamaterial-one whose permittivity is near zero-exerts a repulsive force on an electric dipole source, resulting in levitation of the dipole. The phenomenon relies on the expulsion of the time-varying electric field from the metamaterial interior, resembling the perfect diamagnetic expulsion of magnetostatic fields. Leveraging this concept, we study some realistic requirements for the levitation or repulsion of a polarized particle radiating at any frequency, from microwave to optics.
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