Fig. 2: Optical properties of plasmonic L-nanohelicoids.
From: Unidirectional chiral scattering from single enantiomeric plasmonic nanoparticles
a Scanning electron microscopy images (top view) of an individual gold L-nanohelicoid (schematics is shown in yellow) and a L-nanohelicoid assembly on a substrate showing the uniformity of the fabricated nanostructures; the average size of the nanohelicoids is around 180 nm. b–d Numerically calculated (b) magnitudes and (c) relative phases of the electric and magnetic dipoles excited in a 180 nm gold L-nanohelicoid in a SiO2 matrix with a x-polarised plane wave propagating in the − z direction, and (d) corresponding magnitudes and phases of the excited chiral dipoles. Source data are provided as a Source Data file.
