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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 8 — Apr. 11, 2011
  • pp: 7633–7639

Plasmonic filters and optical directional couplers based on wide metal-insulator-metal structure

Pixin Chen, Ruisheng Liang, Qiaodong Huang, Zhe Yu, and Xingkai Xu  »View Author Affiliations

Optics Express, Vol. 19, Issue 8, pp. 7633-7639 (2011)

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The wide Metal-Insulator-Metal (WMIM) structure is proposed and its characteristics are analyzed numerically using finite-difference time-domain (FDTD) method. Simulations show that power can be periodically transferred between its two Metal-Insulator (MI) interfaces while power is injected asymmetrically. Novel plasmonic filters and optical directional couplers (ODCs) based on WMIM structure are proposed, which work similarly as traditional dielectric devices. Due to the simple structures without thin metal gaps, our result may provide an alternative way to realize the fabrication of nanoscale optical devices.

© 2011 OSA

OCIS Codes
(060.1810) Fiber optics and optical communications : Buffers, couplers, routers, switches, and multiplexers
(240.6680) Optics at surfaces : Surface plasmons
(350.2460) Other areas of optics : Filters, interference

ToC Category:
Optics at Surfaces

Original Manuscript: January 20, 2011
Revised Manuscript: March 25, 2011
Manuscript Accepted: March 28, 2011
Published: April 6, 2011

Pixin Chen, Ruisheng Liang, Qiaodong Huang, Zhe Yu, and Xingkai Xu, "Plasmonic filters and optical directional couplers based on wide metal-insulator-metal structure," Opt. Express 19, 7633-7639 (2011)

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