Fig. 5From: Exclusive and efficient excitation of plasmonic breathing modes of a metallic nanodisc with the radially polarized optical beamsSimulated results for the 10Â nm thick Ag nanodisc with the diameter of 1200Â nm. a Near-field spectrum taken at the spatial point located on the nanodisc axis and 2Â nm above the nanodisc. b Dispersion relationship of the PB modes compared with the dispersion curve of the antisymmetric FSPBack to article page