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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. 31, Iss. 3 — Mar. 1, 2014
  • pp: 603–606

Plasmonic analogs of Zitterbewegung in nanoscale metal waveguide arrays

Shulin Ding and Guo Ping Wang  »View Author Affiliations


JOSA B, Vol. 31, Issue 3, pp. 603-606 (2014)
http://dx.doi.org/10.1364/JOSAB.31.000603


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Abstract

We numerically observed plasmonic Zitterbewegung (ZB) in nanoscale binary metal waveguide arrays constructed by alternately filling two different dielectrics into adjacent guides. The positive- and negative-energy states of a relativistic electron, whose interference causes the ZB, are mimicked by surface plasmon polariton modes of the two bands of the guide array, respectively. Different from photonic ZB appearing in dielectric systems, we also found that SPP wave packets satisfy a negative-coupled Dirac equation; hence the beam center of SPP shows a shift direction opposite to photonic ZB.

© 2014 Optical Society of America

OCIS Codes
(240.6680) Optics at surfaces : Surface plasmons
(310.2790) Thin films : Guided waves
(250.5403) Optoelectronics : Plasmonics
(310.6628) Thin films : Subwavelength structures, nanostructures

ToC Category:
Thin Films

History
Original Manuscript: October 11, 2013
Revised Manuscript: December 8, 2013
Manuscript Accepted: January 23, 2014
Published: February 26, 2014

Citation
Shulin Ding and Guo Ping Wang, "Plasmonic analogs of Zitterbewegung in nanoscale metal waveguide arrays," J. Opt. Soc. Am. B 31, 603-606 (2014)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-31-3-603


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