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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 38, Iss. 21 — Nov. 1, 2013
  • pp: 4342–4345

Greatly enhanced ultrabroadband light absorption by monolayer graphene

Wangshi Zhao, Kaifeng Shi, and Zhaolin Lu  »View Author Affiliations


Optics Letters, Vol. 38, Issue 21, pp. 4342-4345 (2013)
http://dx.doi.org/10.1364/OL.38.004342


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Abstract

We demonstrate greatly enhanced light absorption by monolayer graphene over a broad spectral range, from visible to near IR, based on the attenuated total reflection. In the experiment, graphene is sandwiched between two dielectric media referred to as superstrate and substrate. Based on numerical calculation and experimental results, the closer the refractive indices of the superstrate and the substrate are, the higher the absorption of graphene is. The light absorption of monolayer graphene up to 42.7% is experimentally achieved.

© 2013 Optical Society of America

OCIS Codes
(240.0310) Optics at surfaces : Thin films
(260.6970) Physical optics : Total internal reflection
(160.4236) Materials : Nanomaterials
(010.1030) Atmospheric and oceanic optics : Absorption

ToC Category:
Materials

History
Original Manuscript: July 8, 2013
Revised Manuscript: September 12, 2013
Manuscript Accepted: September 24, 2013
Published: October 22, 2013

Citation
Wangshi Zhao, Kaifeng Shi, and Zhaolin Lu, "Greatly enhanced ultrabroadband light absorption by monolayer graphene," Opt. Lett. 38, 4342-4345 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-21-4342


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