“…In the same year, Bian et al [16] studied the light scattering characteristics of negative refractive index nanoparticles with graphene coating based on the scattering theory of charged spheres. In 2018, Ahmed et al [17] investigated electromagnetic scattering from an orthorhombic dielectric-magnetic sphere with dielectric coatings using the T-matrix method. In 2021, Gao et al [18] derived an analytical solution for the electromagnetic scattering of a charged coated sphere based on Lorenz Mie theory, and analyzed its scattering characteristics.…”