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Proceedings Paper

Designer metal-nanoantennae/dye complexes for maximum fluorescence enhancement
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Paper Abstract

We theoretically investigate the fluorescence enhancement of a representative set of dye-molecules excited by three classes of nanoantennae, using a fully vectorial three-dimensional finite-difference time-domain (3D FDTD) method. Through these 3D FDTD calculations, in conjunction with analytic guidance using temporal coupled-mode (TCM) theory, we develop a design procedure for antennae assemblies that allow achieving fluorescence enhancements of 200-900 over the emission intensity in the bare dye molecule. The enhancement from these commercially available fluorochrome conjugates, namely, CFTM568, CFTM660R and CFTM790 are fully investigated using spherical-dimer, elliptical-dimer, and bowtie nanoantennae. These results demonstrate a method for rationally designing arbitrary metallic nanoparticle/emitter assemblies prior to their synthesis and assembly to achieve optimum fluorescence enhancement.

Paper Details

Date Published: 2 September 2015
PDF: 6 pages
Proc. SPIE 9547, Plasmonics: Metallic Nanostructures and Their Optical Properties XIII, 95473B (2 September 2015); doi: 10.1117/12.2188382
Show Author Affiliations
Xiang Meng, Columbia Univ. (United States)
Hao Yang, Columbia Univ. (United States)
Richard R. Grote, Columbia Univ. (United States)
Jerry I. Dadap, Columbia Univ. (United States)
Nicolae C. Panoiu, Univ. College London (United Kingdom)
Richard M. Osgood, Columbia Univ. (United States)

Published in SPIE Proceedings Vol. 9547:
Plasmonics: Metallic Nanostructures and Their Optical Properties XIII
Allan D. Boardman; Din Ping Tsai, Editor(s)

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