旋光法
反向
斯托克斯参量
物理
光学
数学
几何学
散射
作者
Shuyi Wang,Tie Hu,Shichuan Wang,Yunxuan Wei,Zhiqiang Mei,Bing Yan,Wenhong Zhou,Zhenyu Yang,Jinkun Zheng,Yuanlong Peng,Ming Zhao
出处
期刊:Optics Letters
[The Optical Society]
日期:2024-02-26
卷期号:49 (6): 1595-1595
摘要
In the realm of metasurface-based polarimetry, well-known for its remarkable compactness and integration capabilities, previous attempts have been hindered by limitations such as the restricted choices of target polarization states and the inefficient focusing of light. To address these problems, this study introduces and harnesses a novel, to our knowledge, forward-solving model, grounded in the equivalence principle and dyadic Green’s function, to inversely optimize the vectorial focusing patterns of metalenses. Leveraging this methodology, we develop and experimentally validate a single multi-foci metalens-based polarimeter, capable of simultaneously separating and concentrating four distinct elliptical polarization states at a wavelength of 10.6 µm. Rigorous experimental evaluations, involving the assessment of 18 scalar polarized beams, reveal an average error of 5.92% and a high contrast ratio of 0.92, which demonstrates the efficacy of the polarimeter. The results underscore the potential of our system in diverse sectors, including military defense, healthcare, and autonomous vehicle technology.
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