Topologically optimized concentric-nanoring metalens with 1 mm diameter, 0.8 NA and 600 nm imaging resolution in the visible

doi:10.1364/OE.478680

CORC > 长春光学精密机械与物理研究所 > 中国科学院长春光学精密机械与物理研究所

	Topologically optimized concentric-nanoring metalens with 1 mm diameter, 0.8 NA and 600 nm imaging resolution in the visible
	Z. Jin; Y. Lin; C. Wang; Y. Han; B. Li; J. Zhang; X. Zhang; P. Jia; Y. Hu; Q. Liu
刊名	Optics Express
	2023
卷号	31 期号:6 页码:10489-10499
ISSN号	10944087
DOI	10.1364/OE.478680
英文摘要	Metalenses can achieve diffraction-limited focusing via localized phase modification of the incoming light beam. However, the current metalenses face to the restrictions on simultaneously achieving large diameter, large numerical aperture, broad working bandwidth and the structure manufacturability. Herein, we present a kind of metalenses composed of concentric nanorings that can address these restrictions using topology optimization approach. Compared to existing inverse design approaches, the computational cost of our optimization method is greatly reduced for large-size metalenses. With its design flexibility, the achieved metalens can work in the whole visible range with millimeter size and a numerical aperture of 0.8 without involving high-aspect ratio structures and large refractive index materials. Electron-beam resist PMMA with a low refractive index is directly used as the material of the metalens, enabling a much more simplified manufacturing process. Experimental results show that the imaging performance of the fabricated metalens has a resolution better than 600 nm corresponding to the measured FWHM of 745 nm. © 2023 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement.
URL标识	查看原文
内容类型	期刊论文
源URL	[http://ir.ciomp.ac.cn/handle/181722/67573]
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	Z. Jin,Y. Lin,C. Wang,et al. Topologically optimized concentric-nanoring metalens with 1 mm diameter, 0.8 NA and 600 nm imaging resolution in the visible[J]. Optics Express,2023,31(6):10489-10499.
APA	Z. Jin.,Y. Lin.,C. Wang.,Y. Han.,B. Li.,...&H. Jiang and Y. Deng.(2023).Topologically optimized concentric-nanoring metalens with 1 mm diameter, 0.8 NA and 600 nm imaging resolution in the visible.Optics Express,31(6),10489-10499.
MLA	Z. Jin,et al."Topologically optimized concentric-nanoring metalens with 1 mm diameter, 0.8 NA and 600 nm imaging resolution in the visible".Optics Express 31.6(2023):10489-10499.