Fig. 4From: Direct Visualization of Wavelength-Dependent Single Dipoles Generated on Single Gold Nanourchins with Sharp Branchesa, c Measured and best-matched simulation patterns of single AuNU1 on a glass slide at 600 nm. b, d Measured and best-matched simulation patterns of single AuNU1 at 700 nm. The white-dotted line shows the single dipole orientation generated on the AuNU surface at the LSPR wavelength. The scale bar represents 1 μmBack to article page