He Yongli, Song Boxiang, Tang Jiang
Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074, China.
School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, 430074, China.
Front Optoelectron. 2022 May 18;15(1):24. doi: 10.1007/s12200-022-00017-4.
Metasurfaces, also known as 2D artificial metamaterials, are attracting great attention due to their unprecedented performances and functionalities that are hard to achieve by conventional diffractive or refractive elements. With their sub-wavelength optical scatterers, metasurfaces have been utilized to freely modify different characteristics of incident light such as amplitude, polarization, phase, and frequency. Compared to traditional bulky lenses, metasurface lenses possess the advantages of flatness, light weight, and compatibility with semiconductor manufacture technology. They have been widely applied to a range of scenarios including imaging, solar energy harvesting, optoelectronic detection, etc. In this review, we will first introduce the fundamental design principles for metalens, and then report recent theoretical and experimental progress with emphasis on methods to correct chromatic and monochromatic aberrations. Finally, typical applications of metalenses and corresponding design rules will be presented, followed by a brief outlook on the prospects and challenges of this field.
超表面，也被称为二维人工超材料，因其具有传统衍射或折射元件难以实现的前所未有的性能和功能而备受关注。凭借其亚波长光学散射体，超表面已被用于自由改变入射光的不同特性，如振幅、偏振、相位和频率。与传统的笨重透镜相比，超表面透镜具有平面化、重量轻以及与半导体制造技术兼容的优点。它们已被广泛应用于一系列场景，包括成像、太阳能收集、光电检测等。在这篇综述中，我们将首先介绍金属透镜的基本设计原理，然后报告近期的理论和实验进展，重点是校正色差和单色像差的方法。最后，将介绍金属透镜的典型应用及相应的设计规则，随后对该领域的前景和挑战进行简要展望。
