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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 38, Iss. 9 — May. 1, 2013
  • pp: 1437–1439

A closed-form approximate expression for the optical conductivity of graphene

Ergun Simsek  »View Author Affiliations


Optics Letters, Vol. 38, Issue 9, pp. 1437-1439 (2013)
http://dx.doi.org/10.1364/OL.38.001437


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Abstract

A closed-form approximate expression for the optical conductivity of graphene is developed, which generates results with less than 0.8% maximum absolute error for λ>250nm. The expression takes wavelength, temperature, chemical potential, and hopping parameter into account and provides a fast, easy, and reliable alternative to well-known methods that include singular integrals. Numerical results confirm that the effective complex electrical permittivity derived from the optical conductivity successfully represents this one atom thick material in three-dimensional electromagnetic simulations and analyses.

© 2013 Optical Society of America

OCIS Codes
(160.4760) Materials : Optical properties
(240.0310) Optics at surfaces : Thin films
(260.2110) Physical optics : Electromagnetic optics

ToC Category:
Physical Optics

History
Original Manuscript: January 17, 2013
Revised Manuscript: April 1, 2013
Manuscript Accepted: April 1, 2013
Published: April 24, 2013

Citation
Ergun Simsek, "A closed-form approximate expression for the optical conductivity of graphene," Opt. Lett. 38, 1437-1439 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-9-1437


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