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Theoretical study of coated spherical metallic nanoparticles for single-molecule surface-enhanced spectroscopy
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10.1063/1.1833570
/content/aip/journal/apl/85/24/10.1063/1.1833570
http://aip.metastore.ingenta.com/content/aip/journal/apl/85/24/10.1063/1.1833570
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(Color) Spatial distribution of the SERS enhancement in a logarithmic scale (color) in the plane through the symmetric axis for (a) two coated Ag spheres with the core radius , the thickness of the layer , the refractive index of the layer , the interparticle separation , and the refractive index of the surrounding medium ; (b) same as (a) but with ; (c) an enlarged part of (a) in the cavity; (d) versus with other configurations same as (a) for the solid line, and the dotted line shows the case for bare Ag cores. The excitation wavelength is .

Image of FIG. 2.
FIG. 2.

SERS enhancement (a) at the point in the cavity between two touching coated Ag spheres and away from the touching point and the symmetric axis, (b) at the point inside the coating dielectric layer between Ag cores and away from one Ag surface versus for the different radii of the Ag core. The inset in (a) shows the local distribution of in the logarithmic scale at for .

Image of FIG. 3.
FIG. 3.

Same as in Fig. 2 but for the Au core in a logarithmic scale.

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/content/aip/journal/apl/85/24/10.1063/1.1833570
2004-12-09
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Theoretical study of coated spherical metallic nanoparticles for single-molecule surface-enhanced spectroscopy
http://aip.metastore.ingenta.com/content/aip/journal/apl/85/24/10.1063/1.1833570
10.1063/1.1833570
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