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Spectral shapes of surface-enhanced resonance Raman scattering sensitive to the refractive index of media around single Ag nanoaggregates
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10.1063/1.3276564
/content/aip/journal/apl/95/26/10.1063/1.3276564
http://aip.metastore.ingenta.com/content/aip/journal/apl/95/26/10.1063/1.3276564
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Figures

Image of FIG. 1.
FIG. 1.

An experimental setup for measurements of plasma resonance and SERRS of single Ag nanoaggregates without (a) and with (b) covering oil. Images of plasma resonance Rayleigh scattering without (c) and with (d) covering oil. Insets: Images of plasma resonance Rayleigh scattering from ensemble Ag nanoaggregates. Images of SERRS without (e) and with (f) covering oil. Insets: Images of SERRS from ensemble Ag nanoaggregates. Scale bars in (c)-(f) are . The size of the insets is .

Image of FIG. 2.
FIG. 2.

Plasma resonance and SERRS spectra of three representative single Ag nanoaggregates without [(a), (c), and (e)] and with [(b), (d), and (f)] covering oil. Plasma resonance and SERRS spectra of ensemble Ag nanoaggregates without (g) and with (h) covering oil.

Image of FIG. 3.
FIG. 3.

Calculated spectra of plasma resonance (red lines) and SERRS enhancement factors (blue lines) at (a) and (b) . Insets: Spatial distribution of SERRS enhancement factors at plasma resonance maxima. Scale bars are 50 nm. Calculations of SERRS spectra at (c) and (d) following Eq. (1) . (e) Experiments of dependence of intensity ratios of anti-Stokes to stokes SERRS bands at 619 nm and 707 nm. Insets: Calculations following Eq. (1) . Blue and red circles show the ratios of anti-Stokes to stokes SERRS bands at 619 and 707 nm without and with covering oil, respectively.

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/content/aip/journal/apl/95/26/10.1063/1.3276564
2009-12-29
2014-04-16
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Spectral shapes of surface-enhanced resonance Raman scattering sensitive to the refractive index of media around single Ag nanoaggregates
http://aip.metastore.ingenta.com/content/aip/journal/apl/95/26/10.1063/1.3276564
10.1063/1.3276564
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