More than two decades ago, the experimental demonstration of negative refraction in an artificial structure represented a materials science breakthrough of the 21st century. It is not only an exotic phenomenon beyond the common sense, but also opens up some unprecedented capabilities and functionalities (e.g., super-lens). Since then, the concept “Metamaterials” gained considerable attentions, initially in electromagnetic waves and eventually expanded to different fields, such as optics, acoustics, mechanics, as well as technologies like communication, medical equipment, vibration isolation and energy harvesting, to name a few.

中文翻译：

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超材料的新兴前沿


二十多年前，人工结构中负折射的实验演示代表了 21 世纪材料科学的突破。这不仅是一个超出常识的奇特现象，而且还开启了一些前所未有的能力和功能（例如，超级镜头）。从那时起，“超材料”的概念受到了相当大的关注，最初是在电磁波中，最终扩展到不同的领域，如光学、声学、力学，以及通信、医疗设备、隔振和能量收集等技术。