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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 40, Iss. 15 — May. 20, 2001
  • pp: 2501–2509

Scattering of a spheroidal particle illuminated by a Gaussian beam

Yiping Han and Zhensen Wu  »View Author Affiliations


Applied Optics, Vol. 40, Issue 15, pp. 2501-2509 (2001)
http://dx.doi.org/10.1364/AO.40.002501


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Abstract

An approach to expanding a Gaussian beam in terms of the spheroidal wave functions in spheroidal coordinates is presented. The beam-shape coefficients of the Gaussian beam in spheroidal coordinates can be computed conveniently by use of the known expression for beam-shape coefficients, g n , in spherical coordinates. The unknown expansion coefficients of scattered and internal electromagnetic fields are determined by a system of equations derived from the boundary conditions for continuity of the tangential components of the electric and magnetic vectors across the surface of the spheroid. A solution to the problem of scattering of a Gaussian beam by a homogeneous prolate (or oblate) spheroidal particle is obtained. The numerical values of the expansion coefficients and the scattered intensity distribution for incidence of an on-axis Gaussian beam are given.

© 2001 Optical Society of America

OCIS Codes
(290.5850) Scattering : Scattering, particles
(290.5890) Scattering : Scattering, stimulated

History
Original Manuscript: January 2, 2001
Published: May 20, 2001

Citation
Yiping Han and Zhensen Wu, "Scattering of a spheroidal particle illuminated by a Gaussian beam," Appl. Opt. 40, 2501-2509 (2001)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-40-15-2501

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