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Meshless hybrid implicit‐explicit radial point interpolation method in scattering of dielectric particles by light beam with orbital angular momentum
Author(s) -
Yu Zhong,
Wang Yijing,
Xie Yongbin
Publication year - 2020
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.32351
Subject(s) - finite difference time domain method , interpolation (computer graphics) , angular momentum , scattering , laguerre polynomials , physics , gaussian beam , point (geometry) , beam (structure) , computational physics , dielectric , optics , mathematical analysis , mathematics , quantum mechanics , classical mechanics , geometry , motion (physics)
This letter proposes a meshless hybrid implicit‐explicit radial point interpolation method (HIE‐RPIM) to simulate the scattering of the Laguerre‐Gaussian beam with orbital angular momentum (OAM) by dielectric particles. The results are verified by comparison with the finite‐difference time domain (FDTD) and the radial point interpolation method (RPIM) which shows that the HIE‐RPIM agrees well with the FDTD, and the HIE‐RPIM is about 4.9 times faster than the FDTD method and about 4.2 times faster than the RPIM. Moreover, the scattering angle of forward scattering intensity maximum is about 10° to 35° when the OAM modes are L = 1 and 2 and moves back by 5° to 15° from L = 1 to 2. The HIE‐RPIM has potential to research the scattering properties of OAM beam.