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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 53, Iss. 9 — Mar. 20, 2014
  • pp: 1954–1957

Hollow hybrid plasmonic waveguide for nanoscale optical confinement with long-range propagation

Tarun Sharma and Mukesh Kumar  »View Author Affiliations

Applied Optics, Vol. 53, Issue 9, pp. 1954-1957 (2014)

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A novel (to our knowledge) hybrid plasmonic (HP) hollow waveguide is proposed for nanoscale optical confinement. The light is guided, with improved propagation characteristics, in an air slice sandwiched between metal and silicon. The optical mode in silicon is dragged toward the metal–dielectric (air) interface to make it a HP mode by optimizing the waveguide dimensions. In comparison to the hybrid mode confined in the dielectrics, the air-confined hybrid mode exhibits a smaller effective mode area Am=0.0685/μm2 and longer propagation distance Lp=142μm with a low modal propagation loss of 0.03dB/μm at optimized values of the width and height of the air slice.

© 2014 Optical Society of America

OCIS Codes
(230.7370) Optical devices : Waveguides
(350.4238) Other areas of optics : Nanophotonics and photonic crystals
(250.5403) Optoelectronics : Plasmonics

ToC Category:

Original Manuscript: January 7, 2014
Revised Manuscript: February 17, 2014
Manuscript Accepted: February 17, 2014
Published: March 19, 2014

Tarun Sharma and Mukesh Kumar, "Hollow hybrid plasmonic waveguide for nanoscale optical confinement with long-range propagation," Appl. Opt. 53, 1954-1957 (2014)

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