https://doi.org/10.1351/goldbook.M03919
The @S05487@ of electromagnetic radiation by spherical particles of any size \(r\), relative to the @W06659@, \(\lambda \). Since the cases \(r\ll \lambda \) and \(r\gg \lambda \) are covered by Rayleigh (dipole) @S05487@ and geometric @S05487@ theories, respectively, Mie @S05487@ often refers to the case of \(r\approx \lambda \).