Fig. 9From: Influence of the Substrate to the LSP Coupling Wavelength and Strengtha Schematic diagrams of structure B′ used for FDTD simulations. b Scattering spectra for varying n2 = 1.5, 2.0, and 2.5 of structure B′. Light is incident normally from air (denoted as black lines) and substrates (denoted as red lines). c Polarization electric field distributions of structure B′ with n2 = 1.5 at 532 nmBack to article page