30 August 2006 Fluorescence enhancement by surface gratings
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Fluorescence from a layer of Rhodamine 6G (R6G) is observed to be enhanced strongly if a dielectric grating deposited onto a gold film is used as a substrate. The fluorescence enhancement has been studied as a function of the grating periodicity and the angle of incidence of the excitation light. The enhancement mechanism is consistent with excitation of surface-plasmon-polaritons on the metal film surface. The observed phenomenon may be promising in sensing applications.
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Yu-Ju Hung, Yu-Ju Hung, Igor I. Smolyaninov, Igor I. Smolyaninov, Hsuan-Chen Wu, Hsuan-Chen Wu, Christopher C. Davis, Christopher C. Davis, "Fluorescence enhancement by surface gratings", Proc. SPIE 6323, Plasmonics: Metallic Nanostructures and their Optical Properties IV, 63230N (30 August 2006); doi: 10.1117/12.682182; https://doi.org/10.1117/12.682182

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