Internal field properties of chiral particles with dual Hermite beams

Yin-Bo Yang; Jing Bai; Wen-Hao Ma; Cheng-Xian Ge; Zhen-Sen Wu

doi:10.1117/12.3039330

5 December 2024 Internal field properties of chiral particles with dual Hermite beams

Yin-Bo Yang, Jing Bai, Wen-Hao Ma, Cheng-Xian Ge, Zhen-Sen Wu

Proceedings Volume 13418, Fifteenth International Conference on Information Optics and Photonics (CIOP 2024); 1341803 (2024) https://doi.org/10.1117/12.3039330
Event: 15th International Conference on Information Optics and Photonics (CIOP2024), 2024, Xi’an, China

Abstract

This study investigates the electric field of chiral particle when double Hermite-Gaussian (HG) beam scattering. By combining Mie theory with the method of complex point sources, electric and magnetic fields of HG are obtained in terms of Spherical Vector Wave Function (SVWFs). By employing coordinate rotation theorem, the expansion of a single HG is extended to that of arbitrary incident dual HG. Expanding the electromagnetic fields within various regions of chiral particles using boundary conditions allows for the derivation of scattering coefficients for internal fields of chiral spheres under dual-beam scattering. We conducted numerical simulations of inner electric field and analyzed variations in internal intensity of chiral spheres. The research findings indicate that when beam propagates to the sphere at different angles, the maximum value of electric field according to vector superposition of two beams. Moreover, when dual Hermite-Gaussian beams propagate in opposite directions, the distribution of the total internal electric field exhibits high symmetry. As the chirality parameter increases, the internal electric field within the chiral particles first increases and then decreases. These research findings will provide valuable insights for the development of chiral particle identification techniques and the application of dual-beam optical manipulation techniques.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Yin-Bo Yang, Jing Bai, Wen-Hao Ma, Cheng-Xian Ge, and Zhen-Sen Wu "Internal field properties of chiral particles with dual Hermite beams", Proc. SPIE 13418, Fifteenth International Conference on Information Optics and Photonics (CIOP 2024), 1341803 (5 December 2024); https://doi.org/10.1117/12.3039330

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KEYWORDS

Optical spheres

Electric fields

Particles

Laser scattering

Spherical lenses

Electromagnetic scattering

Radio propagation

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