Figure 3. Scattering spectra of three silver nanorods excited with polarized white light.

Purple and orange lines show horizontal and vertical polarization direction respectively. (a) Spectrum of nearly horizontally oriented rod. (b) Spectrum of nearly vertically oriented rod. (c) Spectrum of ~ 45° tilted rod. Insets show SEM images of the rods. In all cases longitudinal polarization dominates the scattering spectra.