Negative refractive index at optical frequencies

Negative Refractive Index Materials

Negative Refractive Index Materials Victor Veselago,1 Leonid Braginsky,2 Valery Shklover,3 and Christian Hafner4 ∗ 1Laboratory of Magnetic Materials, A. M. Prokhorov Institute of General Physics, 38 Vavilov Street, 119991 Moscow, Russia 2Institute of Semiconductors’ Physics, 13 Lavrent’eva Pr., 630090 Novosibirsk, Russia 3Laboratory of Crystallography, ETH Zürich, CH-8093 Zürich, Switzerland 4L...

Negative refractive index metamaterials

a negative index of refraction over a band of microwave frequencies1. This demonstration of a previously unexploited electromagnetic (EM) property proved the importance of engineered materials and has resulted in an extraordinary amount of continued development by scientists working in optics, electromagnetism, physics, engineering, and materials science. Experimental results revealing new phen...

Three Dimensional Optical Metamaterial Exhibiting Negative Refractive Index

Figure S1. The refractive index of the fishnet metamaterials for different numbers of layers and material loss. (a) The refractive index for different number of functional layers along the propagation direction. One important feature of metamaterials is the consistent refractive index profiles for different thicknesses. The effective refractive index was found by calculating the complex transmi...

Nonmagnetic nanocomposites for optical and infrared negative-refractive-index media

We develop an approach to use nanostructured plasmonic materials as a nonmagnetic negative-refractiveindex system at optical and near-infrared frequencies. In contrast to conventional negative-refraction materials, our design does not require periodicity and thus is highly tolerant to fabrication defects. Moreover, since the proposed materials are intrinsically nonmagnetic, their performance is...

Resonant Negative Refractive Index Metamaterials