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18 March 2024 Multi-objectives optimization for catenary meta-optics via field-driven optimization
Siran Chen, Fei Zhang, Yingli Ha, Mingbo Pu, Yinghui Guo, Mingfeng Xu, Lanting Li, Xiangang Luo
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Proceedings Volume 13104, Advanced Fiber Laser Conference (AFL2023); 131045M (2024) https://doi.org/10.1117/12.3023686
Event: Advanced Fiber Laser Conference (AFL2023), 2023, Shenzhen, China
Abstract
Catenary metasurface has been widely used in fields such as wild-angle imaging, spectral detection, and broadband absorbers, due to its advantages of high efficiency and broadband. In our previous studies, perfect wavefront control of catenary metasurface is achieved via field-driven optimization (FDO). However, the proposed method focuses solely on the performance of catenary metasurfaces at a specific wavelength. Here, considering the broadband and multifunctional of the catenary and catenary-like metasurfaces, multi-objectives FDO is proposed. With 30 iterations, the average diffraction efficiency of the catenary metasurface increases to ~96% at the wavelength of 9-13 μm. In addition, considering the functionality, the catenary and catenary-like metasurfaces are optimized with a pair of orthogonal polarized light incidences. The optimization process preserves the chiral nature of the catenary metasurface. After 30 iterations, the diffraction efficiency of the catenary metasurface is improved from 96.4% to 99.2%. For catenary-like metasurfaces, the diffraction efficiencies exceed 90% for both left-handed and right-handed elliptically polarized light incidences. Our work provides a methodology for designing multifunctional complex continuous metasurfaces, which may further promote catenary optics.
(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.
Citation Download Citation
Siran Chen, Fei Zhang, Yingli Ha, Mingbo Pu, Yinghui Guo, Mingfeng Xu, Lanting Li, and Xiangang Luo "Multi-objectives optimization for catenary meta-optics via field-driven optimization", Proc. SPIE 13104, Advanced Fiber Laser Conference (AFL2023), 131045M (18 March 2024); https://doi.org/10.1117/12.3023686
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KEYWORDS
Diffraction
Polarized light
Design
Incident light
Mathematical optimization
Optics manufacturing
Wavefronts
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