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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 38, Iss. 24 — Dec. 15, 2013
  • pp: 5410–5413

Enhancing infrared extinction and absorption in a monolayer graphene sheet by harvesting the electric dipolar mode of split ring resonators

Yuancheng Fan, Zeyong Wei, Zhengren Zhang, and Hongqiang Li  »View Author Affiliations


Optics Letters, Vol. 38, Issue 24, pp. 5410-5413 (2013)
http://dx.doi.org/10.1364/OL.38.005410


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Abstract

Optical extinction and absorption enhancement in the infrared range of a monolayer graphene sheet by patterning split ring resonators (SRRs) is studied. It is found that the electric mode is stronger in enhancing infrared extinction and absorption compared to the magnetic mode and other higher-order modes. We improve the infrared extinction of the SRR graphene sheet by increasing the graphene area ratio in the SRR unit cell design. With the increase of the graphene area ratio, the radiation ability of the electric dipolar mode and dissipation of graphene compete for a maximum infrared absorption of about 50%. The findings on enhancing infrared extinction and absorption of the graphene sheet by harvesting the electric dipolar mode may have potential applications in terahertz and infrared detection and modulation for graphene photonics and optoelectronics.

© 2013 Optical Society of America

OCIS Codes
(240.6680) Optics at surfaces : Surface plasmons
(260.5740) Physical optics : Resonance
(290.2200) Scattering : Extinction
(160.3918) Materials : Metamaterials
(250.5403) Optoelectronics : Plasmonics

ToC Category:
Optoelectronics

History
Original Manuscript: September 17, 2013
Revised Manuscript: October 24, 2013
Manuscript Accepted: November 13, 2013
Published: December 11, 2013

Citation
Yuancheng Fan, Zeyong Wei, Zhengren Zhang, and Hongqiang Li, "Enhancing infrared extinction and absorption in a monolayer graphene sheet by harvesting the electric dipolar mode of split ring resonators," Opt. Lett. 38, 5410-5413 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-24-5410

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