The Ag dielectric function in plasmonic metamaterials

Vladimir P. Drachev, Uday K. Chettiar, Alexander V. Kildishev, Hsiao Kuan Yuan, Wenshan Cai, Vladimir M. Shalaev

Research output: Contribution to journalArticlepeer-review

257 Citations (Scopus)


Ag permittivity (dielectric function) in coupled strips is different from bulk and has been studied for strips of various dimensions and surface roughness. Arrays of such paired strips exhibit the properties of metamagnetics. The surface roughness does not affect the Ag dielectric function, although it does increase the loss at the plasmon resonances of the coupled strips. The size effect in the imaginary part of the dielectric function is significant for both polarizations of light, parallel and perpendicular to the strips with relatively large A-parameter.

Original languageEnglish
Pages (from-to)1186-1195
Number of pages10
JournalOptics Express
Issue number2
Publication statusPublished - 21 Jan 2008
Externally publishedYes


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