Molecular quenching and relaxation in a plasmonic tunable system

被引:46
作者
Baffou, Guillaume [1 ]
Girard, Christian [2 ]
Dujardin, Erik [2 ]
Francs, Gerard Colas des [3 ]
Martin, Olivier J. F. [4 ]
机构
[1] Univ Paris 11, CNRS, Photophys Mol Lab, F-91405 Orsay, France
[2] CNRS, F-31055 Toulouse, France
[3] Univ Bourgogne, CNRS, UMR 5209, Inst Carnot Bourgogne, F-21078 Dijon, France
[4] Swiss Fed Inst Technol Lausanne EPFL, Nanophoton & Metrol Lab, CH-1015 Lausanne, Switzerland
关键词
D O I
10.1103/PhysRevB.77.121101
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Molecular fluorescence decay is significantly modified when the emitting molecule is located near a plasmonic structure. When the lateral sizes of such structures are reduced to nanometer-scale cross sections, they can be used to accurately control and amplify the emission rate. In this Rapid Communication, we extend Green's dyadic method to quantitatively investigate both radiative and nonradiative decay channels experienced by a single fluorescent molecule confined in an adjustable dielectric-metal nanogap. The technique produces data in excellent agreement with current experimental work.
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页数:4
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