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Optically switchable and tunable terahertz metamaterials through photoconductivity

TitleOptically switchable and tunable terahertz metamaterials through photoconductivity
Publication TypeJournal Article
Year of Publication2012
AuthorsKafesaki M, Shen NH, Tzortzakis S, Soukoulis CM
Journal TitleJournal of Optics
Volume14
Pages114008
Date Published11
Type of ArticleReview
ISBN Number2040-8978
Accession NumberWOS:000310838300009
Keywordsindex, metamaterials, refraction, split-ring resonators, SRRs, switchable systems, tunable systems
Abstract

We present both theoretical and experimental cases for realizing optically switchable and tunable split-ring resonator (SRR) metamaterials operating in the THz regime. This is achieved by suitably placing photoconducting semiconductors in the various SRR designs. Exciting the semiconductor by an optical pump beam, the realization of single- and multi-band switching, blue-shift and red-shift tunability, and broad-band phase modulation are demonstrated.
URL<Go to ISI>://WOS:000310838300009
DOI10.1088/2040-8978/14/11/114008
Alternate JournalJ. Opt.