1.
Opt Lett
; 34(15): 2381-3, 2009 Aug 01.
Artigo
em Inglês
| MEDLINE
| ID: mdl-19649104
RESUMO
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.