Surface plasmon waves generated by nanogrooves through spectral interference

Qiaoqiang Gan, Yongkang Gao, Qing Wang, Lin Zhu, and Filbert Bartoli
Phys. Rev. B 81, 085443 – Published 25 February 2010

Abstract

A pure surface plasmon polariton (SPP) model predicted that the SPP excitation in a slit-groove structure at metallodielectric interfaces exhibits an intricate dependence on the groove width P. Lalanne et al. [Phys. Rev. Lett. 95, 263902 (2005); P. Lalanne et al.Nat. Phys. 2, 551 (2006)]. In this paper, we present a simple far-field experiment to test and validate this interesting theoretical prediction. The measurement results clearly demonstrate the predicted functional dependence of the SPP coupling efficiency on groove width, in good agreement with the SPP picture.

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  • Received 19 January 2010

DOI:https://doi.org/10.1103/PhysRevB.81.085443

©2010 American Physical Society

Authors & Affiliations

Qiaoqiang Gan1, Yongkang Gao1, Qing Wang2, Lin Zhu3, and Filbert Bartoli1,*

  • 1Center for Optical Technologies, Electrical and Computer Engineering Department, Lehigh University, Bethlehem, Pennsylvania 18015, USA
  • 2Nano-optoelectronics Laboratory, Institute of Semiconductors, Chinese Academy of Sciences, P.O. Box 912, Beijing 100083, China
  • 3Department of Electrical and Computer Engineering, Center for Optical Materials Science and Engineering Technologies, Clemson University, Clemson, South Carolina 29634, USA

  • *fjb205@lehigh.edu

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Issue

Vol. 81, Iss. 8 — 15 February 2010

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