Journal
OPTICS LETTERS
Volume 35, Issue 2, Pages 127-129Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.35.000127
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Funding
- National Natural Science Foundation of China (NSFC) [60772002]
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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. (C) 2010 Optical Society of America
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