Journal
OPTICS EXPRESS
Volume 19, Issue 7, Pages 5741-5752Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.19.005741
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- TUBITAK [108E123, 109E001]
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Terahertz metamaterial structures that employ flexing microelectromechanical cantilevers for tuning the resonance frequency of an electric split-ring resonator are presented. The tuning cantilevers are coated with a magnetic thin-film and are actuated by an external magnetic field. The use of cantilevers enables continuous tuning of the resonance frequency over a large frequency range. The use of an externally applied magnetic field for actuation simplifies the metamaterial structure and its use for sensor or filter applications. A structure for minimizing the actuating field is derived. The dependence of the tunable bandwidth on frequency is discussed. (c) 2011 Optical Society of America
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