Imaginary (a) and real (b) parts of the dielectric function of silver. Eib denotes the interband transition threshold energy. 23
Thermal dependence of the dielectric function of silver: imaginary part, , as extracted from the experimental results of Winsemius et al. (black dots); 24 imaginary part, (solid curve), and real part, (dashed curve), of the interband contribution.
Silver interband thermo-optical contribution to the effective TOP of a nanocomposite material consisting of silver nanoparticles in silica with 1% metal volume fraction: imaginary (a) and real (b) parts. The grey zones correspond to the spectral domains of both the SPR and the interband transition threshold.
Inverse absorption width and maximum absorption coefficient of a nanocomposite material consisting of silver nanoparticles dispersed in a glass host medium. Open circles: experimental results reported by Doremus; 30 cross signs: results of the calculation (see text). The straight lines represent a linear fit to the experimental results.
Thermal variations (black thick curve) of the effective dielectric function of a Ag:SiO2 nanocomposite material with 1% silver volume fraction. (a) Imaginary part; (b) real part. Interband (dashed blue curve) and intraband (solid red curve) contributions are also displayed.
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