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Tunable terahertz metamaterials with negative permeability
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SYSNO ASEP 0326761 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Tunable terahertz metamaterials with negative permeability Title Laditelné terahertzové metamateriály se zápornou permeabilitou Author(s) Němec, Hynek (FZU-D) RID, ORCID, SAI
Kužel, Petr (FZU-D) RID, ORCID, SAI
Kadlec, Filip (FZU-D) RID, ORCID, SAI
Kadlec, Christelle (FZU-D) RID, ORCID
Yahiaoui, R. (FR)
Mounaix, P. (FR)Number of authors 6 Source Title Physical Review. B - ISSN 1098-0121
Roč. 79, č. 24 (2009), 241108/1-241108/4Number of pages 4 s. Language eng - English Country US - United States Keywords tunable metamaterial ; effective magnetic permeability ; incipient ferroelectrics ; strontium titanate ; terahertz spectroscopy Subject RIV BM - Solid Matter Physics ; Magnetism R&D Projects IAA100100907 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) LC512 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) MEB020742 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) CEZ AV0Z10100520 - FZU-D (2005-2011) UT WOS 000267699700008 DOI 10.1103/PhysRevB.79.241108 Annotation We demonstrate experimentally and theoretically dielectric metamaterials exhibiting a tunable range of negative effective permeability in the terahertz spectral region (0.2–0.36 THz). Our structures consist of an array of intrinsically nonmagnetic rods made of an incipient ferroelectric SrTiO3 which shows a high tunable permittivity. The magnetic response and its tuning are achieved by a temperature control of the permittivity of SrTiO3, which defines the resonant confinement of the electromagnetic field within the rods. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2010
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