摘要
Metalenses are expected to play an increasingly important role in miniaturized and integrated optical imaging components/systems.However,devising broadband achromatic metalenses with high focusing efficiencies is still quite challenging.In this work,we proposed an aperture-shared partition phase cooperative manipulation approach for designing a highefficiency broadband achromatic metalens composed of two concentric sub-metalenses.As a proof-of-concept,an achromatic polarization-independent metalens is successfully designed for the visible and near-infrared range from450 nm to 1400 nm with the focusing efficiency over 70% for the wavelength range of 600 nm to 1400 nm.The approach reported here provides a possibility for designing a high-performance metalens,which has great potential applications in integrated optics.
作者
Peng Sun
Mengdie Zhang
Fengliang Dong
Liefeng Feng
Weiguo Chu
孙朋;张梦蝶;董凤良;冯列峰;褚卫国(Tianjin Key Laboratory of Low Dimensional Materials Physics and Preparing Technology,Department of Applied Physics,School of Science,Tianjin University,Tianjin 300072,China;Nanofabrication Laboratory,CAS Key Laboratory for Nanophotonic Materials and Devices,CAS Center for Excellence in Nanoscience,National Center for Nanoscience and Technology,Beijing 100190,China;Center of Materials Science and Optoelectronics Engineering,University of Chinese Academy of Sciences,Beijing 100049,China)
基金
supported by the National Natural Science Foundation of China (Nos. 61875042, 11627803, DMR-61804010, and 11204209)
Youth Innovation Promotion Association CAS (No. Y201911)
Scientific Instrument Developing Project CAS (No. Y8512911)
Natural Science Foundation of Tianjin (No. 17JCYBJC16200)
