Scattering of electromagnetic waves by charged spheres: near-field external intensity distribution

Opt Lett. 2012 Jan 15;37(2):265-7. doi: 10.1364/OL.37.000265.

Abstract

This Letter treats the scattering of electromagnetic waves by an electrically charged spherical particle in near-field approximation. Particular attention is paid to the external intensity distribution at the outer edges of the particle. The difference between scattering by a charged sphere and an electrically neutral sphere is significant only when size parameters exceed unity.