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Enhanced transmission of slit arrays in an extremely thin metallic film

Antoine Moreau·Christophe Lafarge·Nicolas Laurent·Kofi Edee·Gérard Granet
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Abstract

Horizontal resonances of slit arrays are studied. They can lead to an enhanced transmission that cannot be explained using the single-mode approximation. A new type of cavity resonance is found when the slits are narrow for a wavelength very close to the period. It can be excited for very low thicknesses. Optimization shows these structures could constitute interesting monochromatic filters.

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Antoine Moreau, Christophe Lafarge, Nicolas Laurent, Kofi Edee, Gérard Granet. 2006-06-06. Enhanced transmission of slit arrays in an extremely thin metallic film. https://doi.org/10.1088/1464-4258/9/2/008

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