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Journal of the Optical Society of America A

Journal of the Optical Society of America A


  • Editor: Franco Gori
  • Vol. 27, Iss. 6 — Jun. 1, 2010
  • pp: 1457–1465

Electromagnetic scattering for a uniaxial anisotropic sphere in an off-axis obliquely incident Gaussian beam

Qiong-kun Yuan, Zhen-sen Wu, and Zheng-jun Li  »View Author Affiliations

JOSA A, Vol. 27, Issue 6, pp. 1457-1465 (2010)

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An analytical solution to the scattering of an off-axis Gaussian beam obliquely incident on a uniaxial anisotropic sphere is obtained in the particle-centered system. Based on the local approximation to the off-axis beam shape coefficients and the coordinate rotation theory, the off-axis obliquely incident Gaussian beam is expanded with the spherical vector wave functions in the primary coordinate of the uniaxial anisotropic sphere. The internal fields of the uniaxial anisotropic sphere are proposed in the integrating form of the spherical vector wave functions by introducing the Fourier transform. By matching the fields on the boundary and solving matrix equations, the expansion coefficients are analytically derived. The influences of the beam waist center positioning and the obliquely incident angles, as well as the permittivity tensors on the far scattered field distributions, are numerically presented. The correctness of the theory is verified by comparing our numerical results in special cases with results from the references and with calculations by other algorithms.

© 2010 Optical Society of America

OCIS Codes
(140.3430) Lasers and laser optics : Laser theory
(290.5850) Scattering : Scattering, particles
(290.5845) Scattering : Scattering, out-of-field

ToC Category:

Original Manuscript: January 6, 2010
Revised Manuscript: March 23, 2010
Manuscript Accepted: March 25, 2010
Published: May 24, 2010

Qiong-kun Yuan, Zhen-sen Wu, and Zheng-jun Li, "Electromagnetic scattering for a uniaxial anisotropic sphere in an off-axis obliquely incident Gaussian beam," J. Opt. Soc. Am. A 27, 1457-1465 (2010)

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