Applied Physics B

, Volume 95, Issue 4, pp 807–812

Spectrally selective splitters with metal-dielectric-metal surface plasmon waveguides

Article

Abstract

Spectrally selective splitters with metal-dielectric-metal (MDM) subwavelength waveguides are proposed in this paper. The method is based on the Bragg grating structure with periodically modulated MDM waveguide width, which delivers a stop band effect for the surface plasmon propagating in the waveguide. By adding appropriate Bragg grating structure in one or more arms of the waveguide splitters, light in a certain frequency range can be readily guided into the desired directions, as demonstrated numerically by the finite-difference time-domain method. Dependence and optimization of the geometrical parameters are also considered in this paper.

PACS

42.82 

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Copyright information

© Springer-Verlag 2009

Authors and Affiliations

  1. 1.State Key Laboratory of Optical Technologies for Microfabrication, Institute of Optics and ElectronicsChinese Academy of SciencesChengduChina
  2. 2.College of Information EngineeringShenzhen UniversityShenzhenChina

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