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Optics Express

Optics Express

  • Editor: C. Martijin de Sterke
  • Vol. 19, Iss. 7 — Mar. 28, 2011
  • pp: 5741–5752

Continuously tunable terahertz metamaterial employing magnetically actuated cantilevers

Burak Ozbey and Ozgur Aktas  »View Author Affiliations


Optics Express, Vol. 19, Issue 7, pp. 5741-5752 (2011)
http://dx.doi.org/10.1364/OE.19.005741


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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 OSA

OCIS Codes
(040.1880) Detectors : Detection
(070.4790) Fourier optics and signal processing : Spectrum analysis
(160.3918) Materials : Metamaterials

ToC Category:
Metamaterials

History
Original Manuscript: December 20, 2010
Revised Manuscript: February 24, 2011
Manuscript Accepted: February 24, 2011
Published: March 14, 2011

Citation
Burak Ozbey and Ozgur Aktas, "Continuously tunable terahertz metamaterial employing magnetically actuated cantilevers," Opt. Express 19, 5741-5752 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-7-5741


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