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Generation of an arbitrary order Bessel beam in FDTD for time domain calculation
Author(s): Zhefeng Wu; Jiajie Wang; Paul Briard; Yiping Han; Antao Chen; Wenjuan Zhao; Yongchang Jiao
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Paper Abstract

An arbitrary order Bessel beam with arbitrary incidence is generated numerically in finite-difference time-domain (FDTD) method using a total-field/scattered-field (TF/SF) approach. This is implemented by decomposition of Bessel beam into a series of plane waves, which are projected into the FDTD simulation domain. The off-axis incidence case is realized by tuning the arrival time when the elementary plane wave gets to the center area of simulation domain, and the oblique incidence case is implemented by rotating the plane waves through Euler angles. Numerical examples concerning backscattering radar cross-sections (RCS) are presented to demonstrate the validity, accuracy, and capability of the proposed method. The results in this paper provide an efficient way to investigate the interactions of Bessel beams and particles with complex shape and composition using FDTD.

Paper Details

Date Published: 17 May 2019
PDF: 7 pages
Proc. SPIE 11170, 14th National Conference on Laser Technology and Optoelectronics (LTO 2019), 111701M (17 May 2019); doi: 10.1117/12.2533457
Show Author Affiliations
Zhefeng Wu, Xidian Univ. (China)
Jiajie Wang, Xidian Univ. (China)
Paul Briard, Xidian Univ. (China)
Yiping Han, Xidian Univ. (China)
Antao Chen, Xidian Univ. (China)
Wenjuan Zhao, Xidian Univ. (China)
Yongchang Jiao, Xidian Univ. (China)


Published in SPIE Proceedings Vol. 11170:
14th National Conference on Laser Technology and Optoelectronics (LTO 2019)
Jianqiang Zhu; Weibiao Chen; Zhenxi Zhang; Minlin Zhong; Pu Wang; Jianrong Qiu, Editor(s)

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