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VOIDS IN THE SPECTRUM. "Engineered materials composed of designed inclusions can exhibit exotic and unique electromagnetic properties not inherent in the individual constituent components." https://lnkd.in/ePVzVDS View in LinkedIn

3D PHOTONIC CRYSTALS. "Controlling electromagnetic (EM) waves in three dimensions using photonic crystals has stimulated research over several decades. In such structures, the periodic arrangement of dielectric inclusions forbids light propagation inside the sample, opening up energy band gaps in the photonic dispersion." https://lnkd.in/erZViDf View in LinkedIn

PHOTONIC CRYSTALS (AGAIN). "In 2000, it was shown theoretically that several photonic crystal configurations could exhibit the same types of optical phenomena predicted for negative index materials, including negative refraction and imaging by a planar surface." https://lnkd.in/ewjS99N View in LinkedIn

NEW PARADIGM. "Having established the reality of negative refraction, we are now free to investigate other phenomena related to negative index materials. We quickly find that some of the most long-held notions related to waves and optics must be rethought!" https://lnkd.in/ewjS99N View in LinkedIn

CHALLENGED AND NAILED. "The theoretical foundation of negative refraction was challenged in 2002. The theoretical issue was subsequently addressed by several authors, who concluded that, indeed, time-varying signals could also be negative refracted." https://lnkd.in/ewjS99N View in LinkedIn

CHALLENGED AND NAILED. "In 2001, a Snell’s law experiment was performed on a wedge-shaped metamaterial designed to have a negative index of refraction at microwave frequencies." https://lnkd.in/ewjS99N View in LinkedIn

NEGATIVE REFRACTIVE INDEX. "The refractive index determines the amount by which the beam is deflected. If the index is positive, the exiting beam is deflected to the opposite side of the surface normal, whereas if the index is negative, the exiting beam is deflected the same side of the normal." Throw out the old textbooks! https://lnkd.in/ewjS99N View in LinkedIn

NEW ELECTROMAGNETISM. "Recently, metamaterials that display negative refractive index – a property not found in any known naturally occurring material – have drawn significant scientific interest, underscoring the remarkable potential of metamaterials to facilitate new developments in electromagnetism." https://lnkd.in/ePVzVDS View in LinkedIn

RETHINKING MATERIALS. "Artificial magnetism and negative refractive index are two specific types of behavior that have been demonstrated over the past few years, illustrating the new physics and new applications possible when we expand our view as to what constitutes a material." https://lnkd.in/ewjS99N View in LinkedIn

LEFT-HANDED METAMATERIALS have a negative refractive index. "Metamaterials which exhibit a negative value for the refractive index such as negative index materials are often referred to by any of several terminologies: left-handed media or left-handed material (LHM), backward wave media (BW media), media with negative refractive index, double negative (DNG) metamaterials, and other similar names." https://lnkd.in/eqteM9a View in LinkedIn