Continuously tunable terahertz metamaterial employing magnetically actuated cantilevers
Author
Ozbey, B.
Aktas O.
Date
2011Source Title
Optics Express
Print ISSN
10944087
Publisher
Optical Society of American (OSA)
Volume
19
Issue
7
Pages
5741 - 5752
Language
English
Type
ArticleItem Usage Stats
115
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views
86
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Abstract
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. © 2011 Optical Society of America.
Keywords
Magnetic fieldsMetamaterials
Nanocantilevers
Natural frequencies
Applied magnetic fields
Continuous tuning
External magnetic field
Filter applications
Frequency ranges
Metamaterial structures
Micro-electro-mechanical
Resonance frequencies
Split-ring resonator
Tera Hertz
Tunable bandwidth
Tuning
article
equipment
equipment design
instrumentation
magnetism
microelectromechanical system
terahertz radiation
transducer
Equipment Design
Equipment Failure Analysis
Magnetics
Micro-Electrical-Mechanical Systems
Terahertz Radiation
Transducers
Permalink
http://hdl.handle.net/11693/21984Published Version (Please cite this version)
http://dx.doi.org/10.1364/OE.19.005741Collections
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