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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 18 — Sep. 9, 2013
  • pp: 21542–21555

Giant optical nonlocality near the Dirac point in metal-dielectric multilayer metamaterials

Lei Sun, Jie Gao, and Xiaodong Yang  »View Author Affiliations


Optics Express, Vol. 21, Issue 18, pp. 21542-21555 (2013)
http://dx.doi.org/10.1364/OE.21.021542


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Abstract

The giant optical nonlocality near the Dirac point in lossless metal-dielectric multilayer metamaterials is revealed and investigated through the analysis of the band structure of the multilayer stack in the three-dimensional ω-k space, according to the transfer-matrix method with the optical nonlocal effect. The position of the Dirac point is analytically located in the ω-k space. It is revealed that the emergence of the Dirac point is due to the degeneracy of the symmetric and the asymmetric eigenmodes of the coupled surface plasmon polaritons. The optical nonlocality induced epsilon-near-zero frequency shift for the multilayer stack compared to the effective medium is studied. Furthermore, the giant optical nonlocality around the Dirac point is explored with the iso-frequency contour analysis, while the beam splitting phenomenon at the Dirac point due to the optical nonlocal effect is also demonstrated.

© 2013 OSA

OCIS Codes
(240.6680) Optics at surfaces : Surface plasmons
(260.2030) Physical optics : Dispersion
(160.3918) Materials : Metamaterials
(310.4165) Thin films : Multilayer design
(310.6628) Thin films : Subwavelength structures, nanostructures

ToC Category:
Metamaterials

History
Original Manuscript: May 30, 2013
Revised Manuscript: August 16, 2013
Manuscript Accepted: August 16, 2013
Published: September 5, 2013

Citation
Lei Sun, Jie Gao, and Xiaodong Yang, "Giant optical nonlocality near the Dirac point in metal-dielectric multilayer metamaterials," Opt. Express 21, 21542-21555 (2013)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-21-18-21542


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