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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 35, Iss. 11 — Jun. 1, 2010
  • pp: 1847–1849

Deep subwavelength surface modes in metal–dielectric metamaterials

Sung Hyun Nam, Erick Ulin-Avila, Guy Bartal, and Xiang Zhang  »View Author Affiliations

Optics Letters, Vol. 35, Issue 11, pp. 1847-1849 (2010)

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We present what we believe to be the first study of deep subwavelength surface modes in binary metal–dielectric metamaterials. By employing anomalous coupling in binary periodicity, peculiar properties of band structure and eigenmode symmetry are obtained. We show that strongly confined plasmonic Tamm-like and Shockley-like surface modes can be formed at the termination of the array. We clarify the character of each surface mode and analyze its unique symmetry with the corresponding band structure.

© 2010 Optical Society of America

OCIS Codes
(240.6680) Optics at surfaces : Surface plasmons
(240.6690) Optics at surfaces : Surface waves
(160.3918) Materials : Metamaterials

ToC Category:
Optics at Surfaces

Original Manuscript: February 11, 2010
Revised Manuscript: April 23, 2010
Manuscript Accepted: April 28, 2010
Published: May 24, 2010

Sung Hyun Nam, Erick Ulin-Avila, Guy Bartal, and Xiang Zhang, "Deep subwavelength surface modes in metal–dielectric metamaterials," Opt. Lett. 35, 1847-1849 (2010)

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  18. εAu=ε∞−ωp2/ω(ω+iγc) where ε∞=10, ωp=1.4×1016, and γc=1.1×1014.
  19. The two eigenvalues for the type H near β/k0=1.5 in Fig. have different physical origins. One is single interface SPP-like mode on the leftmost metal surface, and the other one is associated with a localized mode on the right end due to the strong interaction. Those modes are not the surface modes of interest in this Letter.

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Fig. 1 Fig. 2 Fig. 3

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