Figure 4.

(a) The local field intensity enhancement distribution E/E0in the logarithmic scale due to the presence of the equilateral triangular Ag NP island with 120 nm edge lengths and the incident wavelength is 480 nm.(b) The Raman scattering spectra of pure TiO2 film and Ag/TiO2 nanocomposite film.

Xu et al. Nanoscale Research Letters 2012 7:239   doi:10.1186/1556-276X-7-239
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