Plasmonics quenching and enhancement of a fluorescing molecule outside and inside a silver metallic nanoshell


Journal Article

Analytic expressions are derived for the enhancement and quenching of a fluorescing molecule outside and in the interior of a metallic spherical nanoshell. The competing effects of enhancement and quenching are a strong function of the radial location of a molecule exterior to the shell. For a fluorescing molecule inside the shell, the enhancement and quenching are a weaker function of radius and a stronger function of the shell thickness. The enhancement and quenching also have a strong wavelength dependence arising from plasmon resonances excited within the particle. For an external molecule, a shell produces a larger peak enhancement than a solid homogeneous sphere of the same diameter. Calculations are presented to illustrate these effects in a silver shell. © 2011 IEEE.

Full Text

Duke Authors

Cited Authors

  • Norton, SJ; Vo-Dinh, T

Published Date

  • November 1, 2011

Published In

Volume / Issue

  • 10 / 6

Start / End Page

  • 1264 - 1274

International Standard Serial Number (ISSN)

  • 1536-125X

Digital Object Identifier (DOI)

  • 10.1109/TNANO.2011.2124471

Citation Source

  • Scopus