Propagation of double zero-order Bessel beam and its scattering properties to uniaxial anisotropic spheres

Based on the generalized Lorenz Mie theory, propagation and scattering properties of a uniaxial anisotropic spherical particle illuminated separately by double zero-order Bessel beam with arbitrary direction polarization are studied. The characteristics compared those single beam. Using orthogonal relation vector wave function coordinate rotation theorem, expanded forms beams derived. analytical expressions expansion coefficients derived integral method. total incident field obtained through superposition principle. Fourier transform tangentially continuous boundary conditions, internal electromagnetic sphere is in terms By comparing angular distribution radar cross section when degenerating into plane waves results given literature, correctness theory program this paper both verified. effects incidence angle, conic angle numerically analyzed. theoretical numerical expected to be used study properties, size analysis optical trapping for particles, biological cells other particles multi-beams.