Enhanced fluorescence from metal nanoapertures: physical characterizations and biophotonic applications

Jérome Wenger; Heykel Aouani; Davy Gérard; Steve Blair; Thomas W. Ebbesen; Hervé Rigneault

doi:10.1117/12.840042

16 February 2010 Enhanced fluorescence from metal nanoapertures: physical characterizations and biophotonic applications

Jérome Wenger, Heykel Aouani, Davy Gérard, Steve Blair, Thomas W. Ebbesen, Hervé Rigneault

Author Affiliations +

Proceedings Volume 7577, Plasmonics in Biology and Medicine VII; 75770J (2010) https://doi.org/10.1117/12.840042
Event: SPIE BiOS, 2010, San Francisco, California, United States

Abstract

Nanoapertures milled in opaque metallic films offer a simple and robust photonic tool to significantly enhance the fluorescence of single molecules. We provide a detailed physical characterization of this phenomenon for apertures milled in gold and aluminum, and discuss its application to biophotonics. For the first time, the most general figures are provided to predict the awaited enhancement factors for almost every kind of fluorescent molecule. This knowledge is essential to discuss the ability to detect low-quantum yield species. We also report the first demonstration of single metal nanoapertures to perform DNA hybridization sensing, and measure similar enhancement factors as for experiments on diffusing molecules.

Citation Download Citation

Jérome Wenger, Heykel Aouani, Davy Gérard, Steve Blair, Thomas W. Ebbesen, and Hervé Rigneault "Enhanced fluorescence from metal nanoapertures: physical characterizations and biophotonic applications", Proc. SPIE 7577, Plasmonics in Biology and Medicine VII, 75770J (16 February 2010); https://doi.org/10.1117/12.840042

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