Fig. 5From: Influence of the Substrate to the LSP Coupling Wavelength and Strengtha, b The ratios of coupling strengths CS/CSeff with various n2 of structure A and structure C respectively. Black rectangular and red circular dots represent the front and back incident cases respectively. c, d Scattering and absorption spectra of structures A and C with fixed n2 = 2.0 when light is incident from the substrateBack to article page