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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 35, Iss. 2 — Jan. 15, 2010
  • pp: 127–129

Interference and horizontal Fabry–Perot resonance on extraordinary transmission through a metallic nanoslit surrounded by grooves

Lin Cai, Guangyuan Li, Zhonghua Wang, and Anshi Xu  »View Author Affiliations

Optics Letters, Vol. 35, Issue 2, pp. 127-129 (2010)

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The debate on the underlying physics of the extraordinary optical transmission (EOT) through a metallic nano-slit surrounded with periodic grooves is largely resolved. We clarify that the EOT originates from the interference between the slit modes excited by the incident light and by the groove-generated surface plasmon polaritons modulated by the horizontal Fabry–Perot resonance effect due to the surrounding grooves. The quantitative model derived will greatly simplify the design of such structures.

© 2010 Optical Society of America

OCIS Codes
(050.1220) Diffraction and gratings : Apertures
(240.6680) Optics at surfaces : Surface plasmons

ToC Category:
Diffraction and Gratings

Original Manuscript: October 9, 2009
Manuscript Accepted: November 16, 2009
Published: January 11, 2010

Lin Cai, Guangyuan Li, Zhonghua Wang, and Anshi Xu, "Interference and horizontal Fabry-Perot resonance on extraordinary transmission through a metallic nanoslit surrounded by grooves," Opt. Lett. 35, 127-129 (2010)

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