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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 3 — Feb. 1, 2014
  • pp: 501–504

Interplay between absorption and radiative decay rates of surface plasmon polaritons for field enhancement in periodic arrays

ZhaoLong Cao, Lei Zhang, Chung-Yu Chan, and Hock-Chun Ong  »View Author Affiliations


Optics Letters, Vol. 39, Issue 3, pp. 501-504 (2014)
http://dx.doi.org/10.1364/OL.39.000501


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Abstract

We studied the effects of absorption and radiative decay rates of surface plasmon polaritons on the field enhancement in periodic metallic arrays by temporal coupled mode theory and finite-difference time-domain simulation. When two rates are equal, the field enhancement is the strongest and the peak height of the orthogonal reflectivity reaches 0.25. To demonstrate this fact, we fabricated two series of two-dimensional Au and Ag nanohole arrays with different geometries and measured their corresponding reflectivity and decay rates. The experimental results agree well with the analytical and numerical results.

© 2014 Optical Society of America

OCIS Codes
(240.6680) Optics at surfaces : Surface plasmons
(260.5740) Physical optics : Resonance

ToC Category:
Optics at Surfaces

History
Original Manuscript: September 12, 2013
Revised Manuscript: December 15, 2013
Manuscript Accepted: December 16, 2013
Published: January 23, 2014

Citation
ZhaoLong Cao, Lei Zhang, Chung-Yu Chan, and Hock-Chun Ong, "Interplay between absorption and radiative decay rates of surface plasmon polaritons for field enhancement in periodic arrays," Opt. Lett. 39, 501-504 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-3-501

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