Enhanced fluorescence by metal nanospheres on metal substrates
Enhanced fluorescence by metal nanospheres on metal substrates
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DOI：
10.1364/ol.34.002381
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发表时间：
2009-08-01
期刊：
影响因子：
3.6
通讯作者：
Della Sala, Fabio
中科院分区：
文献类型：
--
作者：
D'Agostino, Stefania;Pompa, Pier Paolo;Della Sala, Fabio
我们研究了薄银基底上的银纳米球对金属的荧光增强作用。嵌入聚合物基质中的核/壳胶体纳米晶体的实验测量显示约9的荧光增强因子。我们采用离散偶极子近似方法来描述局域场增强因子（LFEF）。我们发现，所观察到的荧光增强是与广泛的LFEF由基板诱导的配置文件。(C)2009年美国光学学会
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