Applied Physics B

, Volume 95, Issue 4, pp 807–812

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

Authors

  • Y. Qi
    • State Key Laboratory of Optical Technologies for Microfabrication, Institute of Optics and ElectronicsChinese Academy of Sciences
  • D. Gan
    • State Key Laboratory of Optical Technologies for Microfabrication, Institute of Optics and ElectronicsChinese Academy of Sciences
  • J. Ma
    • College of Information EngineeringShenzhen University
  • J. Cui
    • State Key Laboratory of Optical Technologies for Microfabrication, Institute of Optics and ElectronicsChinese Academy of Sciences
  • C. Wang
    • State Key Laboratory of Optical Technologies for Microfabrication, Institute of Optics and ElectronicsChinese Academy of Sciences
    • State Key Laboratory of Optical Technologies for Microfabrication, Institute of Optics and ElectronicsChinese Academy of Sciences
Article

DOI: 10.1007/s00340-009-3493-0

Cite this article as:
Qi, Y., Gan, D., Ma, J. et al. Appl. Phys. B (2009) 95: 807. doi:10.1007/s00340-009-3493-0

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

Copyright information

© Springer-Verlag 2009