High-Efficiency Achromatic Metalens Topologically Optimized in the Visible
文献类型：期刊论文
| 作者 | L. J. Zhang, C. M. Wang, Y. P. Wei, Y. Lin, Y. M. Han and Y. B. Deng |
| 刊名 | Nanomaterials
 |
| 出版日期 | 2023 |
| 卷号 | 13期号:5页码:10 |
| DOI | 10.3390/nano13050890 |
| 英文摘要 | Metalens, composed of arrays of nano-posts, is an ultrathin planar optical element used for constructing compact optical systems which can achieve high-performance optical imaging by wavefront modulating. However, the existing achromatic metalenses for circular polarization possess the problem of low focal efficiency, which is caused by the low polarization conversion efficiencies of the nano-posts. This problem hinders the practical application of the metalens. Topology optimization is an optimization-based design method that can effectively extend the degree of design freedom, allowing the phases and polarization conversion efficiencies of the nano-posts to be taken into account simultaneously in the optimization procedures. Therefore, it is used to find geometrical configurations of the nano-posts with suitable phase dispersions and maximized polarization conversion efficiencies. An achromatic metalens has a diameter of 40 mu m. The average focal efficiency of this metalens is 53% in the spectrum of 531 nm to 780 nm by simulation, which is higher than the previously reported achromatic metalenses with average efficiencies of 20 similar to 36%. The result shows that the introduced method can effectively improve the focal efficiency of the broadband achromatic metalens. |
| URL标识 | 查看原文 |
| 语种 | 英语 |
| 源URL | [http://ir.ciomp.ac.cn/handle/181722/68185]  |
| 专题 | 中国科学院长春光学精密机械与物理研究所 |
| 推荐引用方式 GB/T 7714 | L. J. Zhang, C. M. Wang, Y. P. Wei, Y. Lin, Y. M. Han and Y. B. Deng. High-Efficiency Achromatic Metalens Topologically Optimized in the Visible[J]. Nanomaterials,2023,13(5):10. |
| APA | L. J. Zhang, C. M. Wang, Y. P. Wei, Y. Lin, Y. M. Han and Y. B. Deng.(2023).High-Efficiency Achromatic Metalens Topologically Optimized in the Visible.Nanomaterials,13(5),10. |
| MLA | L. J. Zhang, C. M. Wang, Y. P. Wei, Y. Lin, Y. M. Han and Y. B. Deng."High-Efficiency Achromatic Metalens Topologically Optimized in the Visible".Nanomaterials 13.5(2023):10. |
入库方式： OAI收割
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。