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Enhancement of single-molecule fluorescence detection in subwavelength apertures |
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| Authors: | Rigneault Hervé Capoulade Jérémie Dintinger José Wenger Jérôme Bonod Nicolas Popov Evgeni Ebbesen Thomas W Lenne Pierre-François |
| Affiliation: | Institut Fresnel, Domaine Universitaire de Saint Jér?me, Université d'Aix-Marseille III, CNRS UMR 6133, 13397 Marseille Cedex 20, France. herve.rigneault@fresnel.fr |
| Abstract: | We report the experimental proof of molecular count rate enhancement (up to 6.5-fold) and lifetime reduction for single fluorescent molecules diffusing in subwavelength apertures milled in aluminum films. The observed enhancement dependence with the aperture diameter agrees qualitatively with numerical electromagnetic computations of the excitation power density into the aperture volume. |
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