Fig. 3From: Properties of Longitudinal Electromagnetic Oscillations in Metals and Their Excitation at Planar and Spherical SurfacesNormalized extinction cross section of silver particles with diameters of 2.2, 1.8, 1.4, and 1.0 nm calculated with local (dashed lines) and nonlocal (solid curves) Mie theories. The smaller the particle, the lower the curve. All theoretical cross sections are presented in common relative unitsBack to article page