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      • Department of Electrical and Electronics Engineering
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      Continuously tunable terahertz metamaterial employing magnetically actuated cantilevers

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      Author
      Ozbey, B.
      Aktas O.
      Date
      2011
      Source Title
      Optics Express
      Print ISSN
      10944087
      Publisher
      Optical Society of American (OSA)
      Volume
      19
      Issue
      7
      Pages
      5741 - 5752
      Language
      English
      Type
      Article
      Item Usage Stats
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      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 fields
      Metamaterials
      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/11693/21984
      Published Version (Please cite this version)
      http://dx.doi.org/10.1364/OE.19.005741
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      • Department of Electrical and Electronics Engineering 3524
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