热烈祝贺张琤副教授和2021级研究生湛雨杰、邱用雪等合作撰写的综述论文《Planar Metasurface-Based Concentrators for Solar Energy Harvest: from Theory to Engineering》被Springer Nature和中国光学工程学会联合出版的高影响力国际科技期刊PhotoniX（影响因子：19.818）接收！论文doi: 10.1186/s43074-022-00074-0.

太阳能作为一种取之不尽用之不竭的可再生能源，其充分利用可有效缓解全球变暖，并有助于实现可持续发展。采用太阳能集热器收集太阳能，有利于实现低成本储热，并可提高基于可再生能源电网的稳定性。现有太阳能集热器通常使用抛物线槽和碟形的传统聚光器。这不可避免地需要高精度的支架和复杂的跟踪太阳系统，从而大幅度增加了太阳能热发电站的运行成本，阻碍其进一步应用。近年来发展的由二维纳米结构阵列构建的平面超构透镜，即超表面聚光器，可以通过精确布置口径场的相位分布来人为设计入射光的频率色散和角度色散，有望对宽波段太阳能在广角范围内进行富集。因此，采用平面超表面聚光器有望实现免跟踪的太阳能收集，在捕获宽带、广角太阳光方面显示出巨大的潜力。本文从聚焦效率、工作带宽和角度依赖性等方面综合论述了用于太阳能收集的平面超表面聚光器的研究动机、设计原理、构建材料和大面积制造方法。同时，也指出了平面超表面聚光器目前存在的主要挑战和未来的发展目标。

    原文摘要如下：Solar energy is an inexhaustible renewable energy resource, which is a potential solution to global warming and aids sustainable development. The use of solar-thermal collectors to harness solar energy facilitates low-cost heat storage and can improve the stability of power grids based on renewable energy. In solar-thermal collectors, traditional concentrators, such as parabolic troughs and dishes, are typically used but inevitably require high-precise supports and complex tracking sun systems, which increase the cost of solar-thermal power stations and hinder their further applications. In contrast, planar meta-lenses (so-called metasurface-based concentrators) consisting of two-dimensional nanostructured arrays are allowed to engineer the frequency dispersion and angular dispersion of the incident light through delicately arranging the aperture phase distribution, thereby correcting their inherent aberrations. Accordingly, the novel meta-lenses offer tremendous potentials to effectively capture broadband, wide-angle sunlight without the extra tracking system. This review summarizes the research motivation, design principles, building materials, and large-area fabrication methods of meta-lens for solar energy harvesting in terms of focusing efficiency, operation bandwidth, and angular dependence. In addition, the main challenges and future goals are examined.