title: Controlling light scattering and polarization by spherical particles with radial anisotropy.
abstract: Based on full-wave electromagnetic theory, we derive the zero-forward and zero-backward scattering conditions for radially anisotropic spheres within the quasi-static limit. We find that the near-field intensity can be tuned dramatically through the adjustment of the radial anisotropy, while the far-field light scattering diagrams are similar under the zero-forward or zero-backward scattering conditions. Generalized "Brewster's angle" for anisotropic spheres is also derived, at which the scattering light is totally polarized. In addition, the high-quality polarized scattering wave and the tunable polarization conversion can be achieved for the radially anisotropic spheres.
authors.affiliation: Jiangsu Key Laboratory of Thin Films, Department of Physics, Soochow University, Suzhou 215006, China.
authors.forename: Y X
authors.initials: YX
authors.lastname: Ni
authors.forename: L
authors.initials: L
authors.lastname: Gao
authors.forename: A E
authors.initials: AE
authors.lastname: Miroshnichenko
authors.forename: C W
authors.initials: CW
authors.lastname: Qiu
mesh_terms: D016880:Anisotropy; D003198:Computer Simulation; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008027:Light; D008863:Microspheres; D008962:Models, Theoretical; D012031:Refractometry / Q000379:methods*; D012542:Scattering, Radiation