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Proceedings Paper

Numerical and experimental study of fluorescence enhancement with silica encapsulated metallic nanoparticles
Author(s): J. B. Zhang; J. F. Ho; L. Cheng; Q. Q. Teo; J. Y. Sze; B. Luk'yanchuk
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Paper Abstract

A metallic nanoparticle can act as an optical antenna, enhancing the fluorescence of nearby fluorescent molecules. We investigate the effects of a silica spacer layer on this fluorescence enhancement. Numerical simulations using the Finite- Difference Time Domain (FDTD) method is performed to find the optimum size for the gold nanosphere core as well as the optimum thickness of the silica shell. We present the dependence of radiative decay rate and quantum yield of the fluorescent molecule with respect to varying silica layer thicknesses.

Paper Details

Date Published: 17 February 2010
PDF: 7 pages
Proc. SPIE 7577, Plasmonics in Biology and Medicine VII, 75770L (17 February 2010); doi: 10.1117/12.841747
Show Author Affiliations
J. B. Zhang, Data Storage Institute (Singapore)
J. F. Ho, Data Storage Institute (Singapore)
L. Cheng, National Univ. of Singapore (Singapore)
Q. Q. Teo, National Univ. of Singapore (Singapore)
J. Y. Sze, Data Storage Institute (Singapore)
B. Luk'yanchuk, Data Storage Institute (Singapore)


Published in SPIE Proceedings Vol. 7577:
Plasmonics in Biology and Medicine VII
Tuan Vo-Dinh; Joseph R. Lakowicz, Editor(s)

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