Journal
OPTICS EXPRESS
Volume 14, Issue 22, Pages 10825-10830Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.14.010825
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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. (c) 2006 Optical Society of America.
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