Physics Today

Volume 57 [6] Page 37


Reversing Light
with Negative Refraction

JB Pendry and DR Smith


Victor Veselago, in a paper1 published in 1967, pondered the consequences for electromagnetic waves interacting with a hypothetical material for which both the electric permittivity, , and the magnetic permeability, , were simultaneously negative. As no naturally occurring material or compound has ever been demonstrated with negative  and, Veselago wondered whether this apparent asymmetry in material properties was just happenstance, or perhaps had a more fundamental origin.  Veselago concluded that not only should such materials be possible but, if ever found, would exhibit remarkable properties unlike those of any known materials, giving a twist to virtually all electromagnetic phenomena.


This paper is available as a PDF file.

Valid HTML 4.0!last updated Tuesday 29 June 2004 by JBP