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Planar metamaterial with transmission and reflection that depend on the direction of incidence
E. Plum, V. A. Fedotov, N. I. Zheludev
We report that normal incidence reflection and transmission of circularly polarized electromagnetic waves from and through planar split-ring metamaterials with chiral symmetry brea…
Strong gyrotopy in a chiral toroidal medium
N. Papasimakis, V. A. Fedotov, K. Marinov +2
In this letter, we present the first experimental study of a new chiral metamaterial consisting of toroidal wire windings. We show that the metamaterial exhibits three bands of cir…
Coherent and incoherent metamaterials and the order-disorder transitions
Nikitas Papasimakis, Vassili A. Fedotov, Yuan Hsing Fu +2
We demonstrate a new class of "coherent" metamaterials, where a regular ensemble of meta-molecules shows a collective, i.e. coherent, narrow band resonant response, while disorderi…
Optical Activity of Planar Achiral Metamaterials
E. Plum, V. A. Fedotov, N. I. Zheludev
We report that the classical phenomena of optical activity and circular dichroism, which are traditionally associated with chirality (helicity) of organic molecules, proteins and i…
3D-Chiral Metamaterial Showing Artificial Magnetic Response and Negative Refraction
E. Plum, J. Dong, J. Zhou +4
Artificial magnetism, negative permeability and negative refractive index are demonstrated in 3D-chiral metamaterial that shows giant polarization rotation and circular dichroism.
Coherent meta-materials and the lasing spaser
N. I. Zheludev, S. L. Prosvirnin, N. Papasimakis +1
In 2003 Bergman and Stockman introduced the spaser, a quantum amplifier of surface plasmons by stimulated emission of radiation [1]. They argued that, by exploiting a metal/dielect…