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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 15 — Jul. 23, 2007
  • pp: 9476–9485

Surface plasmon induced polarization rotation and optical vorticity in a single mode waveguide

P. S. Davids, B. A. Block, M. R. Reshotko, and K. C. Cadien  »View Author Affiliations


Optics Express, Vol. 15, Issue 15, pp. 9476-9485 (2007)
http://dx.doi.org/10.1364/OE.15.009476


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Abstract

The control and manipulation of the mode polarization state in a single mode dielectric waveguide is of considerable significance for optical information processing utilizing the polarization state to store digital information and integrated photonic devices used for high speed signaling. Here we report on an integrated on-chip mode polarization rotation based on short metal Cu electrodes placed in close proximity to the dielectric waveguide core. Polarization mode rotation with specific rotation of 104 degrees/mm is observed for offset metallic electrodes placed diagonally along a single mode dielectric waveguide. The mechanism for the polarization rotation is shown to be directional coupling into guided surface plasmon modes at the metal corners and coupling between the guided plasmon modes. This inter-plasmon coupling gives rise to giant polarization rotation and optical vorticity (helical power flow) in the waveguide.

© 2007 Optical Society of America

OCIS Codes
(130.2790) Integrated optics : Guided waves
(130.3120) Integrated optics : Integrated optics devices
(240.6680) Optics at surfaces : Surface plasmons

ToC Category:
Optics at Surfaces

History
Original Manuscript: May 17, 2007
Revised Manuscript: July 13, 2007
Manuscript Accepted: July 15, 2007
Published: July 17, 2007

Citation
P. S. Davids, B. A. Block, M. R. Reshotko, and K. C. Cadien, "Surface plasmon induced polarization rotation and optical vorticity in a single mode waveguide," Opt. Express 15, 9476-9485 (2007)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-15-15-9476


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