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Design Principles for Optoelectronic Applications of Extraordinary Light Transmission Effect in Plasmonics Nanoapertures

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The extraordinary light transmission effect (EOT) through sub-wavelength nanoapertures in opaque metal films has lead to observation of a wide variety of exciting new optical phenomena. This remarkable effect is generally related to the interaction of the light with the extended plasmonic resonances on the surface of the metal film and localized surface plasmons in the apertures. On the other hand, there is little conceptual understanding for controlling the localized surface plasmonic behavior of the individual apertures and their coupling to the extended surface plasmons. In this letter, we present an intuitive and straightforward picture of the extra-ordinary light transmission phenomena based on basic antenna principles for plasmonic excitations and coupling of these plasmonic excitations in complex nano-apertures. Our quasi-static model remarkably well explains our experimental measurements in shape anisotropic structures with unique properties controlled by adjusting the size and the geometry of the apertures. Our approach puts forward new design principles for potential applications ranging from subwavelength optoelectronics and data storage to bio/chemical sensing.
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Document Type: Research Article

Publication date: 2010-03-01

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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