Journal
OPTICS LETTERS
Volume 34, Issue 15, Pages 2381-2383Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.34.002381
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Funding
- European Research Council (ERC) [207441]
- Ministero dell'Istruzione, dell'Universita e della Ricerca (MIUR) FIRB [RBLA03ER38]
- National Science Foundation (NSF) [OISE0242579]
- NSF-MRSEC [DMR-0080008]
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We investigate the metal enhanced fluorescence by silver nanospheres on a thin silver substrate. Experimental measurements for core/shell colloidal nanocrystals embedded in a polymer matrix show a fluorescence enhancement factor of about 9. We apply the discrete dipole approximation method to describe the local-field enhancement factor (LFEF). We find that the observed fluorescence enhancement is related to the broad LFEF profile induced by the substrate. (C) 2009 Optical Society of America
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