Optical chirality signal enhancement of spherical particles based on polarization vortex beams

Jianzhi Zeng; Siyu Chen; Jie Zhao; Zhenjie Wei; Mouxin Wang; Zhiyue Liu; Haifeng Hu

doi:10.1117/12.2690211

17 August 2023 Optical chirality signal enhancement of spherical particles based on polarization vortex beams

Jianzhi Zeng, Siyu Chen, Jie Zhao, Zhenjie Wei, Mouxin Wang, Zhiyue Liu, Haifeng Hu

Proceedings Volume 12757, 3rd International Conference on Laser, Optics, and Optoelectronic Technology (LOPET 2023); 1275715 (2023) https://doi.org/10.1117/12.2690211
Event: 3rd International Conference on Laser, Optics and Optoelectronic Technology (LOPET 2023), 2023, Kunming, China

Abstract

In order to analyze the mechanism of optical chirality signal enhancement of chiral spherical particles, the scattering properties of chiral particles were studied based on the T-matrix method, and the optical chirality signal is calculated under different types of polarization vortex beams with orbital angular momentum (OAM). Firstly, for particles with fixed sizes, the enhancement effects of tightly focused light field of radial and azimuthally polarized polarization beams were explored. In addition, for particles with varying sizes, the enhancement of the optical chirality signal of particles was achieved by controlling the order of OAM carried by the beam.

Citation Download Citation

Jianzhi Zeng, Siyu Chen, Jie Zhao, Zhenjie Wei, Mouxin Wang, Zhiyue Liu, and Haifeng Hu "Optical chirality signal enhancement of spherical particles based on polarization vortex beams", Proc. SPIE 12757, 3rd International Conference on Laser, Optics, and Optoelectronic Technology (LOPET 2023), 1275715 (17 August 2023); https://doi.org/10.1117/12.2690211

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