Plasmonic crystal for efficient energy transfer from fluorescent molecules to long-range surface plasmons

Corrugated metallic thin film structures that do not support short-range surface plasmon modes but do support long-range modes are discussed. The coupling efficiency of the energy of excited fluorescent molecules to long-range modes is theoretically calculated using the rigorous coupled wave approac...

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Bibliographic Details
Published in:Optics express 2009-05, Vol.17 (10), p.8294-8301
Main Authors: Okamoto, Takayuki, Simonen, Janne, Kawata, Satoshi
Format: Article
Language:English
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Summary:Corrugated metallic thin film structures that do not support short-range surface plasmon modes but do support long-range modes are discussed. The coupling efficiency of the energy of excited fluorescent molecules to long-range modes is theoretically calculated using the rigorous coupled wave approach. The obtained maximum coupling efficiency is found to be 55%, more that two times higher than the efficiency of uncorrugated metallic thin films.
ISSN:1094-4087
1094-4087
DOI:10.1364/oe.17.008294