Paper
5 December 2024 Scattering characteristics of the inner field in chiral multilayer spherical structures under the action of a zero-order Bessel beam
Meng-Xin Zhao, Jing Bai, Wen-Hao Ma, Cheng-Xian Ge, Zhen-Sen Wu
Author Affiliations +
Proceedings Volume 13418, Fifteenth International Conference on Information Optics and Photonics (CIOP 2024); 1341804 (2024) https://doi.org/10.1117/12.3039413
Event: 15th International Conference on Information Optics and Photonics (CIOP2024), 2024, Xi’an, China
Abstract
This paper investigates the internal field scattering of multilayered chiral spherical particles by a zero- order Bessel beam. Based on the Generalized Lorenz-Mie Theory (GLMT). An expression for the internal field of chiral spheres with multilayer structure at incidence of a zero-order Bessel beam is derived by Sphere Vector Wave Function (SVWFS). Using the iterative method for multilayered sphere scattering, the internal field coefficients for each region within the multilayered chiral spheres were obtained. A detailed analysis was conducted about the Bessel beam’ cone angle and chiral value of each part of the multilayered spheres on the total internal electric field and polarization components. The results indicate that as the cone angle increases, the total internal electric field of the multilayered chiral spheres gradually decreases, with the maximum electric field intensity shifting toward the center of the sphere. As the chiral parameter of the outer layer increases, the total internal electric field intensity within the chiral sphere first increases and then decreases. With the increase of the chiral parameter of the inner layer, the distribution range of the maximum electric field intensity becomes narrower. The findings of this study provide theoretical insights into the internal field scattering characteristics of chiral multilayered particles, which are of significant value for the optical manipulation of chiral multilayered particles.
(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.
Meng-Xin Zhao, Jing Bai, Wen-Hao Ma, Cheng-Xian Ge, and Zhen-Sen Wu "Scattering characteristics of the inner field in chiral multilayer spherical structures under the action of a zero-order Bessel beam", Proc. SPIE 13418, Fifteenth International Conference on Information Optics and Photonics (CIOP 2024), 1341804 (5 December 2024); https://doi.org/10.1117/12.3039413
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KEYWORDS
Optical spheres

Electric fields

Bessel beams

Laser scattering

Electromagnetic scattering

Particles

Spherical lenses

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