Methodological notes

What are the left-handed media and what is interesting about them?

 a,  b
a Institute of Radio Astronomy, National Academy of Sciences of Ukraine, ul. Krasnoznamennaya, 4, Khar'kov, 61002, Ukraine
b Department of Physics, Technion (Israel Institute of Technology), Technion City, IL-32000, Haifa, Israel

We review the intensively discussed ideas about wave propagation and refraction in media where both electric permittivity and magnetic permeability are negative. The criticism against negative refraction as violating the causality principle is considered. Starting from the initial wave equations, refraction of beams at the boundary of a left-handed medium is analyzed. The physics of a perfect lens formed by a flat layer of a left-handed material is considered.

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Fulltext is also available at DOI: 10.1070/PU2004v047n04ABEH001728
PACS: 41.20.Jb, 42.15.Dp, 78.20.Ci (all)
DOI: 10.1070/PU2004v047n04ABEH001728
Citation: Bliokh K Yu, Bliokh Yu P "What are the left-handed media and what is interesting about them?" Phys. Usp. 47 393–400 (2004)
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Оригинал: Блиох К Ю, Блиох Ю П «Что такое левые среды и чем они интересны?» УФН 174 439–447 (2004); DOI: 10.3367/UFNr.0174.200404j.0439

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