Explore: Negative Refraction

In optics, negative refraction is the electromagnetic phenomenon where light rays become refracted at an interface that is opposite to their more commonly

and Atwater achieved negative refraction in the visible spectral regime. Besides reversed values for the index of refraction, Veselago predicted the

described by Snell's law of refraction, n1 sin θ1 = n2 sin θ2, where θ1 and θ2 are the angle of incidence and angle of refraction, respectively, of a ray

a negative index of refraction for particular wavelengths have been the focus of a large amount of research. These materials are known as negative-index

Snell–Descartes law, and the law of refraction) is a formula used to describe the relationship between the angles of incidence and refraction, when referring to light

medium. Refraction of light is the most commonly observed phenomenon, but other waves such as sound waves and water waves also experience refraction. How

permittivity "ε" and magnetic permeability "μ" an index of refraction "n" is derived. The index of refraction determines how light is bent on traversing from one

metamaterial. DPS has a conventional positive index of refraction, while the DNG has a negative refractive index. Both slabs are impedance-matched to the outside

metamaterials: negative refraction, imaging, lensing and cloaking. Springer, Dordrecht 2013, ISBN 978-94-007-4812-5. Phononic crystals Negative refractive index

transmissive optical device that focuses or disperses a light beam by means of refraction. A simple lens consists of a single piece of transparent material, while