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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 38, Iss. 14 — Jul. 15, 2013
  • pp: 2382–2384

Tunable dual-band terahertz metamaterial bandpass filters

Yanhan Zhu, Subash Vegesna, Yong Zhao, Vladimir Kuryatkov, Mark Holtz, Zhaoyang Fan, Mohammad Saed, and Ayrton A. Bernussi  »View Author Affiliations


Optics Letters, Vol. 38, Issue 14, pp. 2382-2384 (2013)
http://dx.doi.org/10.1364/OL.38.002382


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Abstract

We report metamaterial terahertz (THz) bandpass filters with tunable dual-band selectivity. The shift in the center frequency of the device is achieved by actively modifying the effective length of the resonators. This was realized by introducing vanadium dioxide (VO2) bridges interconnecting specific regions of each resonator. Raising the temperature across the phase transition shifted the resonance frequency by ∼32% due to changes in the electrical conductivity of the VO2. Measured THz transmission response of the proposed dual-band filter was in good correspondence with simulations.

© 2013 Optical Society of America

OCIS Codes
(160.1245) Materials : Artificially engineered materials
(160.3918) Materials : Metamaterials

ToC Category:
Materials

History
Original Manuscript: April 11, 2013
Revised Manuscript: June 5, 2013
Manuscript Accepted: June 5, 2013
Published: July 3, 2013

Citation
Yanhan Zhu, Subash Vegesna, Yong Zhao, Vladimir Kuryatkov, Mark Holtz, Zhaoyang Fan, Mohammad Saed, and Ayrton A. Bernussi, "Tunable dual-band terahertz metamaterial bandpass filters," Opt. Lett. 38, 2382-2384 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-14-2382

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