A previously developed theoretical procedure for determination of electromagnetic fields associated with the interaction of a higher-order Gaussian beam with a homogeneous spherical particle is used to investigate the effects of incident beam type on far-field scattering. Far-field scattering patterns are calculated for (0,0), (0,1), and (1,1) mode Hermite–Gaussian beams and for the helix doughnut mode beam. The effects of incident beam type on the angular distribution of far-field scattering, for both on-sphere-center and off-sphere-center focusing, are examined.
© 1998 Optical Society of America
Original Manuscript: October 16, 1997
Published: May 20, 1998
John P. Barton, "Electromagnetic field calculations for a sphere illuminated by a higher-order Gaussian beam. II. Far-field scattering," Appl. Opt. 37, 3339-3344 (1998)