Scattering of a zero order Bessel beam by a concentric sphere

The scattering of an on-axis incident zero-order Bessel beam by a concentric sphere is firstly investigated by using an analytical method. Based on the spherical vector wave functions, the expansion expressions of the incident Bessel beam are derived in terms of the electric and magnetic fields that satisfy Maxwell's equations. According to the integral localized approximation, an analytical formula for the calculation of beam shape coefficients is given. The present method is validated by t