Tunable terahertz metamaterials with negative permeability

被引：103
|
作者：
Nemec, H. [1 ]
Kuzel, P. [1 ]
Kadlec, F. [1 ]
Kadlec, C. [1 ]
Yahiaoui, R. [2 ]
Mounaix, P. [2 ]
机构：
[1] Acad Sci Czech Republic, Inst Phys, Prague 18221 8, Czech Republic
[2] Univ Bordeaux 1, CNRS, UMR 5798, Ctr Phys Mol Opt & Hertzienne, F-33405 Talence, France
来源：
PHYSICAL REVIEW B | 2009年 / 79卷 / 24期
关键词：
ferroelectric materials; metamaterials; permittivity; strontium compounds; REFRACTIVE-INDEX; SPECTROSCOPY; RANGE;
D O I：
10.1103/PhysRevB.79.241108
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
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 SrTiO(3) which shows a high tunable permittivity. The magnetic response and its tuning are achieved by a temperature control of the permittivity of SrTiO(3), which defines the resonant confinement of the electromagnetic field within the rods.
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页数：4
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