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Journal of the Optical Society of America B

Journal of the Optical Society of America B


  • Editor: Grover Swartzlander
  • Vol. 30, Iss. 4 — Apr. 1, 2013
  • pp: 967–973

Focusing property of the Au-Al2O3-Ag plasmonic metawaveguide with two-dimensional periodic stub resonators

Takeshi Baba  »View Author Affiliations

JOSA B, Vol. 30, Issue 4, pp. 967-973 (2013)

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The optical properties of the Au / Al 2 O 3 / Ag plasmonic metawaveguide with two-dimensional periodic stub resonators were numerically investigated. The modes of this design can be characterized by the waveguide mode and stub resonance. The guided modes, which propagate inside the Al 2 O 3 layer, can be modulated by interacting with the stub resonators. In this situation, the negative group velocity dispersion relations in the near-infrared region can be realized. Focusing characteristics of this design were investigated by changing the design of the unit cell and the dispersion characteristics were discussed. In addition, the simplified design of the stub resonators was proposed. It was suggested that the proposed structure has the property to function as a nanotransmission line structure, which shows negative refraction at near infrared.

© 2013 Optical Society of America

OCIS Codes
(160.3918) Materials : Metamaterials
(350.4238) Other areas of optics : Nanophotonics and photonic crystals
(250.5403) Optoelectronics : Plasmonics

ToC Category:

Original Manuscript: November 2, 2012
Revised Manuscript: January 13, 2013
Manuscript Accepted: February 18, 2013
Published: March 18, 2013

Takeshi Baba, "Focusing property of the Au-Al2O3-Ag plasmonic metawaveguide with two-dimensional periodic stub resonators," J. Opt. Soc. Am. B 30, 967-973 (2013)

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