Physics World

Volume 13, Page 27


Light Runs Backwards in Time

J.B. Pendry


How familiar and safe is the concept of a refractive index: wine glasses sparkle, deep pools appear shallow, camera lenses focus sharp images. ‘Ah yes, light bends towards

the surface normal - Snell's law’ and we move on to more interesting topics. My complacency was recently given a jolt by Sheldon Schultz and David Smith of UCSD

who reported at the recent American Physical Society meeting in Minneapolis that they had made a material with negative refractive index.



This paper is available as a PDF file.

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