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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 11 — May. 23, 2011
  • pp: 10485–10493

Fanolike resonance due to plasmon excitation in linear chains of metal bumps

Xiao-gang Yin, Cheng-ping Huang, Qian-jin Wang, Wan-xia Huang, Lin Zhou, Chao Zhang, and Yong-yuan Zhu  »View Author Affiliations

Optics Express, Vol. 19, Issue 11, pp. 10485-10493 (2011)

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We report the transmission anomaly in a modified slit grating, which is dressed, on the slit sidewalls, with the linear chains of metal bumps. An asymmetric lineshape, which is characteristic of the Fano resonance, has been found in a narrow frequency range of the spectrum. The effect can be attributed to the interference between nonresonant background transmission and resonant plasmonic wave excitation in the linear chains. The dispersion of chain plasmon mode has been suggested, enabling the dynamic tuning of spectral position of the Fano effect.

© 2011 OSA

OCIS Codes
(050.2770) Diffraction and gratings : Gratings
(240.6680) Optics at surfaces : Surface plasmons
(260.5740) Physical optics : Resonance

ToC Category:
Optics at Surfaces

Original Manuscript: April 4, 2011
Revised Manuscript: April 29, 2011
Manuscript Accepted: May 7, 2011
Published: May 12, 2011

Xiao-gang Yin, Cheng-ping Huang, Qian-jin Wang, Wan-xia Huang, Lin Zhou, Chao Zhang, and Yong-yuan Zhu, "Fanolike resonance due to plasmon excitation in linear chains of metal bumps," Opt. Express 19, 10485-10493 (2011)

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