Figure 2From: Near-field optical microscopy of femtosecond-laser-reshaped silver nanoparticles in dielectric matrixSpectra for silver and polystyrene nanoparticles. Upper part: NSOM extinction of spherical Ag NPs (black circles) and PS NPs (red triangles). Lower part: conventional extinction spectrum of spherical Ag NPs. Insets: details of realigning/search scans for 477 and 635 nm.Back to article page