Negative Refraction of Light Rays
The app demonstrates the effect of negative refraction. Light rays are emitted by a point source S. The light rays impinge on a plate of material with negative refractive index n. At the two surfaces of the plate the light rays are refracted according to Snell's law. The refractive index of the plate is negative (n<0). Materials with negative refractive index do not exist in nature, but there are attempts to produce such materials artificially. With the help of the app it can be seen that for n<0, a flat plate can focus light rays and that if n=-1, the image of the point source S is a point. References [1] V. Veselago, "The Electrodynamics of Substances with Simultaneously Negative Values of \Epsilon and \Mu," Soviet Physics Uspekhi, 10, 1968 pp. 509. [2] J. B. Pendry, "Negative Refraction Makes a Perfect Lens," Phys. Rev. Lett., 85, 2000 pp. 3966. [3] G. V. Eleftheriades and K. G. Balmain, Negative-Refraction Metamaterials, New York: John Wiley & Sons, 2005. Other versions There is also a version of this demonstration which is written in Mathematica. This version can be obtained from the Wolfram Demonstrations Project: http://demonstrations.wolfram.com/RefractionOfLightRaysByMaterialWithNegativeRefractiveIndex/
Developer: fbrechte
Categories: education
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Created: 2013-03-23T06:11:13
Updated: 2013-03-23T06:11:13
Version: 0.1