An efficient procedure is developed for calculating light scattering from a spherical particle on a conducting plane. The problem is converted into an equivalent two-particle scattering problem by the method of images. The scattering solution for this two-particle problem is then obtained by the multipole expansion method. Mirror symmetry is exploited to simplify the calculation. Formulas are developed for the differential-scattering cross section and for the extinction and the absorption cross sections. Several example problems are calculated, and the exact solutions are compared with the results from two approximation procedures.
© 1992 Optical Society of America
Original Manuscript: May 20, 1991
Revised Manuscript: February 20, 1992
Manuscript Accepted: March 12, 1992
Published: August 1, 1992
B. R. Johnson, "Light scattering from a spherical particle on a conducting plane: I. Normal incidence," J. Opt. Soc. Am. A 9, 1341-1351 (1992)