surface plasmon-enhanced nanoantenna for localized fluorescence

nanoantena potenciada por plasmones de superficie para fluorescencia localizada

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ID: 141345
2012
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Ranked #29 of 318 articles by views in american journal of physiology endocrinology and metabolism

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Abstract
Surface plasmon-enhanced gold nanoantenna structures on glass substrate are studied for increased localized electric field and fluorescence at the feed gap locations of the antennas. Dipole, Archimedean balanced spiral, and bowtie and double bowtie geometries are studied for surface plasmon effect. Different flare angles for bowtie geometries are compared to each other. Double bowtie geometry with dual polarization capability exhibited superior performance with almost 56 dB field enhancement factor. We also studied the effect of substrate thickness on electric field enhancement and we found that glass thickness plays a critical role for coherent addition of surface plasmons at the feed gap location. The surface plasmon effect is proven by considering perfect electric conductor model of gold instead of its modified Drude model.
Se estudian estructuras de nanoantenas de oro potenciadas por plasmones superficiales sobre un sustrato de vidrio con el fin de incrementar el campo eléctrico localizado y la fluorescencia en las ubicaciones de la brecha de alimentación de las antenas. Se analizan geometrías de dipolo, espiral arquimediana balanceada, así como de pajarita (bowtie) y doble pajarita para evaluar el efecto de los plasmones superficiales. Se comparan entre sí diferentes ángulos de apertura para las geometrías de pajarita. La geometría de doble pajarita con capacidad de polarización dual presentó un rendimiento superior, con un factor de intensificación de campo de casi 56 dB. Asimismo, se estudió el efecto del espesor del sustrato sobre la intensificación del campo eléctrico y se halló que el espesor del vidrio desempeña un papel crítico en la suma coherente de plasmones superficiales en la ubicación de la brecha de alimentación. El efecto de los plasmones superficiales se demuestra al considerar el modelo de conductor eléctrico perfecto para el oro en lugar de su modelo de Drude modificado.
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kocakarin2012internationalsurface Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Isa Kocakarin;Korkut Yegin
Journal american journal of physiology endocrinology and metabolism
Year 2012
DOI
10.1155/2012/592842
URL
http://dx.doi.org/10.1155/2012/592842
Keywords
electrical engineering electronics wireless telephone industry nuclear engineeringcellular telephone services industry

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