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Rodríguez-Fortuño, Francisco José
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Publications (5/5 displayed)
- 2024<b>InFOCUS - Interaction of FOcused Complex beams with Uniaxial Slabs</b>
- 2019Improving propagation lengths of ultraviolet surface plasmon polaritons on thin aluminium films by ion millingcitations
- 2016Repulsion of polarised particles from anisotropic materials with a near-zero permittivity componentcitations
- 2015Levitating forces on polarized particles near anisotropic metamaterials
- 2014Electric Levitation Using ϵ-Near-Zero Metamaterialscitations
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article
Electric Levitation Using ϵ-Near-Zero Metamaterials
Abstract
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.