Experimental laser beam profiles often deviate somewhat from the ideal Gaussian shape of the TEM00 laser mode. In order to take these deviations into account when calculating light scattering, we propose a method for approximating the beam shape coefficients in the partial wave expansion of an experimental laser beam. We then compute scattering by a single dielectric spherical particle placed on the beam’s axis using this method and compare our results to laboratory data. Our model calculations fit the laboratory data well.
© 1996 Optical Society of America
Original Manuscript: July 3, 1995
Revised Manuscript: December 11, 1995
Published: July 20, 1996
James A. Lock and Joseph T. Hodges, "Far-field scattering of an axisymmetric laser beam of arbitrary profile by an on-axis spherical particle," Appl. Opt. 35, 4283-4290 (1996)