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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Grover Swartzlander
  • Vol. 30, Iss. 9 — Sep. 1, 2013
  • pp: 2529–2534

Spiral surface plasmon modes on uniform and tapered metallic nanorods

Chih-Min Chen, Chih-Kai Young, Kuan-Ren Chen, and Yung-Chiang Lan  »View Author Affiliations


JOSA B, Vol. 30, Issue 9, pp. 2529-2534 (2013)
http://dx.doi.org/10.1364/JOSAB.30.002529


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Abstract

Spiral surface plasmon (SSP) modes on uniform and tapered silver nanorods are explored by performing both simulations and theoretical analyses. On a uniform nanorod with a radius equal to 240 nm, the SSP modes can be generated by linearly superposed higher-order HE1 and HE2 eigenmodes. Both the single- and triple-stranded SSP modes are produced by controlling the relative rotation direction of the two component modes. On a tapered nanorod, the spiral pitch of the SSP mode decreases with the reduction of nanorod radius. However, the field energy density along the nanorod axis increases to a maximum value and then falls.

© 2013 Optical Society of America

OCIS Codes
(130.2790) Integrated optics : Guided waves
(230.7370) Optical devices : Waveguides
(240.6680) Optics at surfaces : Surface plasmons

ToC Category:
Optics at Surfaces

History
Original Manuscript: May 23, 2013
Revised Manuscript: July 15, 2013
Manuscript Accepted: August 8, 2013
Published: August 26, 2013

Citation
Chih-Min Chen, Chih-Kai Young, Kuan-Ren Chen, and Yung-Chiang Lan, "Spiral surface plasmon modes on uniform and tapered metallic nanorods," J. Opt. Soc. Am. B 30, 2529-2534 (2013)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-30-9-2529


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