Metamaterials, a kind of novel materials with artificial design, have exhibited extraordinary properties that cannot be found in nature. In the past decade, remarkable achievements have been made in the field of metamaterial-based photodetectors. However, there is hardly any systematic and thorough review of the metamaterials' recent development in photodetection devices. Herein, we summarized recent advances in the metamaterial-based photodetectors according to a dual role of metamaterials: enrichment of photodetection functionalities and enhancement of photodetection performance. To start with, we presented an overview of the relevant concept of metamaterials and explore their distinctive optical characteristics. Subsequently, we delved into the work mechanism and figures of merit of metamaterial-based photodetectors. Next, we highlighted various types of metamaterials as a flexible platform for advanced photodetection technology, including metasurface, graphene-metamaterial hybrids, patterned nanostructures, and van der Waals metamaterials. Finally, the challenges and outlook associated with future developments were systematically and deeply discussed based on the current state of research. We believe that this review will offer crucial insights and valuable guidance, paving the way for future advancements and in-depth investigations in the realm of metamaterial-based photodetectors.

中文翻译：

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用于高性能光电探测器的超材料


超材料是一种具有人工设计的新型材料，表现出了自然界中无法找到的非凡特性。在过去的十年中，基于超材料的光电探测器领域取得了显著的成就。然而，几乎没有任何系统和彻底的综述来介绍超材料在光检测器件中的最新发展。在此，我们根据超材料的双重作用总结了基于超材料的光电探测器的最新进展：丰富光检测功能和增强光检测性能。首先，我们概述了超材料的相关概念，并探讨了它们独特的光学特性。随后，我们深入研究了基于超材料光电探测器的工作机制和品质因数。接下来，我们重点介绍了各种类型的超材料作为先进光探测技术的灵活平台，包括超表面、石墨烯-超材料混合、图案化纳米结构和范德华超材料。最后，根据目前的研究状况，系统深入地讨论了与未来发展相关的挑战和前景。我们相信，这篇综述将提供重要的见解和有价值的指导，为基于超材料的光电探测器领域的未来进展和深入研究铺平道路。