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Journal of Lightwave Technology

Journal of Lightwave Technology

| A JOINT IEEE/OSA PUBLICATION

  • Vol. 25, Iss. 9 — Sep. 1, 2007
  • pp: 2757–2765

Au/SiO2 Nanoring Plasmon Waveguides at Optical Communication Band

Kyung-Young Jung, Fernando L. Teixeira, and Ronald M. Reano

Journal of Lightwave Technology, Vol. 25, Issue 9, pp. 2757-2765 (2007)


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Abstract

We design and investigate plasmon waveguides based on linear arrays of Au nanorings in an SiO2 host for use in an optical communication band (λ ~ 1550 nm). Nanoring particles have better tunability and can achieve more laterally compact waveguides, compared to their solid counterparts, such as nanospheres and nanodisks. Three-dimensional simulations employing the finite-difference time-domain algorithm are used to determine the set of geometrical parameters attaining localized surface plasmon resonance at 1550 nm. It is found out that, in the SiO2 host, Au nanorings attain LSPR at 1550 nm with a 175-nm inner diameter, a 35-nm height, and a 30-nm thickness. It is shown that linear chains of Au nanorings can transport the electromagnetic energy at 1550 nm, with transmission losses γT = 3 dB/655 nm and γL = 3 dB/443 nm and group velocities vgT = 0.177c0 and vgL = 0.327c0 for transverse and longitudinal polarizations, respectively, where c0 is the speed of light in a vacuum.

© 2007 IEEE

Citation
Kyung-Young Jung, Fernando L. Teixeira, and Ronald M. Reano, "Au/SiO2 Nanoring Plasmon Waveguides at Optical Communication Band," J. Lightwave Technol. 25, 2757-2765 (2007)
http://www.opticsinfobase.org/jlt/abstract.cfm?URI=jlt-25-9-2757

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