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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 2 — Jan. 28, 2013
  • pp: 2324–2330

Terahertz imaging employing graphene modulator arrays

Berardi Sensale-Rodriguez, Subrina Rafique, Rusen Yan, Mingda Zhu, Vladimir Protasenko, Debdeep Jena, Lei Liu, and Huili Grace Xing  »View Author Affiliations


Optics Express, Vol. 21, Issue 2, pp. 2324-2330 (2013)
http://dx.doi.org/10.1364/OE.21.002324


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Abstract

In this paper we propose and experimentally demonstrate arrays of graphene electro-absorption modulators as electrically reconfigurable patterns for terahertz cameras. The active element of these modulators consists of only single-atom-thick graphene, achieving a modulation of the THz wave reflectance > 50% with a potential modulation depth approaching 100%. Although the prototype presented here only contains 4x4 pixels, it reveals the possibility of developing reliable low-cost video-rate THz imaging systems employing single detector.

© 2013 OSA

OCIS Codes
(230.4110) Optical devices : Modulators
(160.4236) Materials : Nanomaterials
(110.6795) Imaging systems : Terahertz imaging

ToC Category:
Imaging Systems

History
Original Manuscript: November 19, 2012
Revised Manuscript: January 13, 2013
Manuscript Accepted: January 14, 2013
Published: January 23, 2013

Citation
Berardi Sensale-Rodriguez, Subrina Rafique, Rusen Yan, Mingda Zhu, Vladimir Protasenko, Debdeep Jena, Lei Liu, and Huili Grace Xing, "Terahertz imaging employing graphene modulator arrays," Opt. Express 21, 2324-2330 (2013)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-21-2-2324


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