Designer metal-nanoantennae/dye complexes for maximum fluorescence enhancement

Xiang Meng; Hao Yang; Richard R. Grote; Jerry I. Dadap Jr.; Nicolae C. Panoiu; Richard M. Osgood Jr.

doi:10.1117/12.2188382

2 September 2015 Designer metal-nanoantennae/dye complexes for maximum fluorescence enhancement

Xiang Meng, Hao Yang, Richard R. Grote, Jerry I. Dadap Jr., Nicolae C. Panoiu, Richard M. Osgood Jr.

Proceedings Volume 9547, Plasmonics: Metallic Nanostructures and Their Optical Properties XIII; 95473B (2015) https://doi.org/10.1117/12.2188382
Event: SPIE Nanoscience + Engineering, 2015, San Diego, California, United States

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, CF^TM568, CF^TM660R and CF^TM790 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.

Citation Download Citation

Xiang Meng, Hao Yang, Richard R. Grote, Jerry I. Dadap Jr., Nicolae C. Panoiu, and Richard M. Osgood Jr. "Designer metal-nanoantennae/dye complexes for maximum fluorescence enhancement", Proc. SPIE 9547, Plasmonics: Metallic Nanostructures and Their Optical Properties XIII, 95473B (2 September 2015); https://doi.org/10.1117/12.2188382

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