Interference and horizontal Fabry-Perot resonance on extraordinary transmission through a metallic nanoslit surrounded by grooves
Optics Letters, Vol. 35, Issue 2, pp. 127-129 (2010)
http://dx.doi.org/10.1364/OL.35.000127
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Abstract
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
History
Original Manuscript: October 9, 2009
Manuscript Accepted: November 16, 2009
Published: January 11, 2010
Citation
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)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-2-127
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