Plasmon-mediated excitation modulation of FRET by silver nanoshell

Jiunn Woei Liaw*, Bae Renn Chen, Mao Kuen Kuo

*Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review

1 Scopus citations


Abstract The Forster resonance energy transfer (FRET) between a donor and an acceptor affected by a silver nanoshell (SNS) is investigated theoretically, based on the classical electromagnetic theory. Using the dyadic Green's functions, the enhancement on the excitation rate of the donor is studied. In addition, the apparent quantum yield, in terms of the radiative and nonradiative decay rates, for the acceptor's emission affected by SNS is analyzed. The overall result shows that the plasmon-mediated FRET occurs only when the emission band of the donor and the excitation band of acceptor coincide with one of the plasmon modes (e.g. the dipole and quadrupole modes) of SNS. The distance-dependent decay of the energy transfer rate in the presence of SNS is milder than the inverse sixth power. There is an optimal distance between the acceptor and SNS to obtain the maximum enhancement factor for the long-range plasmon-mediated FRET.

Original languageEnglish
Article number9776
Pages (from-to)122-127
Number of pages6
JournalMicroelectronic Engineering
StatePublished - 20 04 2015

Bibliographical note

Publisher Copyright:
© 2015 Elsevier B.V. All rights reserved.


  • Apparent quantum yield
  • Energy transfer rate
  • Nonradiative decay rate
  • Plasmon-mediated FRET
  • Radiative decay rate
  • Silver nanoshell


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