Fig. 4: Scattering cross section dichroism of the electromagnetic multipoles in perovskite chiral metasurfaces.
From: Perovskite metasurfaces with large superstructural chirality
a Closely matching response of total scattering dichroism, \({{CD}}_{{C}_{S}}\) (black curve), and circular dichroism, CD (yellow curve), as functions of the wavelength. b–d Contribution of individual multipoles to the strong dichroism of the perovskite chiral metasurface: b electric (red curve) and magnetic (blue curve) dipole scattering dichroisms, \({{CD}}_{{C}_{{ED}}}\) and, \({{CD}}_{{C}_{{MD}}}\), as function of the wavelength; c electric (red curve) and magnetic (blue curve) quadrupole scattering dichroisms, \({{CD}}_{{C}_{{EQ}}}\) and, \({{CD}}_{{C}_{{MQ}}}\), as function of the wavelength; d electric (red curve) and magnetic (blue curve) octupole scattering dichroisms, \({{CD}}_{{C}_{{EO}}}\)and, \({{CD}}_{{C}_{{MO}}}\), as function of the wavelength. The vertical black dotted lines indicate the peaks of the CD spectrum, while the pink dotted lines correspond to the peaks of the \({{CD}}_{{C}_{S}}\) spectrum.
