## Scattering of Gaussian beam by arbitrarily shaped particles with multiple internal inclusions |

Optics Express, Vol. 20, Issue 2, pp. 718-731 (2012)

http://dx.doi.org/10.1364/OE.20.000718

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### Abstract

In this paper, we introduce an efficient numerical method based on surface integral equations to characterize the scattering of an arbitrarily incident Gaussian beam by arbitrarily shaped particles with multiple internal inclusions. The incident Gaussian beam is described by the Davis–Barton fifth-order approximation in combination with rotation Euler angles. For numerical purposes, the surfaces of the host particle and the inclusions are modeled using small triangular patches and the established surface integral equations are discretized with the method of moments. The resultant matrix equation is solved by using a parallel implementation of conjugate gradient method on distributed-memory architectures. Some numerical results are included to illustrate the validity and capability of the developed method. These results are also expected to provide useful insights into the scattering of Gaussian beam by composite particles.

© 2012 OSA

**OCIS Codes**

(000.4430) General : Numerical approximation and analysis

(290.5850) Scattering : Scattering, particles

(140.3295) Lasers and laser optics : Laser beam characterization

**ToC Category:**

Scattering

**History**

Original Manuscript: November 3, 2011

Revised Manuscript: December 8, 2011

Manuscript Accepted: December 18, 2011

Published: January 3, 2012

**Citation**

Yiping Han, Zhiwei Cui, and Wenjuan Zhao, "Scattering of Gaussian beam by arbitrarily shaped particles with multiple internal inclusions," Opt. Express **20**, 718-731 (2012)

http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-2-718

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