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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 37, Iss. 3 — Feb. 1, 2012
  • pp: 296–298

Terahertz bandpass filters using double-stacked metamaterial layers

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


Optics Letters, Vol. 37, Issue 3, pp. 296-298 (2012)
http://dx.doi.org/10.1364/OL.37.000296


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Abstract

Bandpass filters are reported based on double-stacked metamaterial layers separated by an air gap for operation at terahertz frequencies. Several stacking configurations were investigated designed for a 0.5THz center frequency. The filters exhibited improved spectral transmission properties when compared with conventional ones based on single metamaterial layers. 3 dB bandwidth of 78GHz and sidelobe suppression ratio >16dB were determined when symmetric or asymmetric double layers were stacked. We demonstrate that superior frequency selectivity can be achieved when metamaterial layers with different unit cells are used. Good agreement was found between measured and simulated transmission response.

© 2012 Optical Society of America

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

ToC Category:
Materials

History
Original Manuscript: September 28, 2011
Revised Manuscript: November 10, 2011
Manuscript Accepted: December 3, 2011
Published: January 19, 2012

Citation
Yanhan Zhu, Subash Vegesna, Vladimir Kuryatkov, Mark Holtz, Mohammad Saed, and Ayrton A. Bernussi, "Terahertz bandpass filters using double-stacked metamaterial layers," Opt. Lett. 37, 296-298 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-3-296


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