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Cross-wavelength invisibility integrated with various invisibility tactics.
Science Advances ( IF 11.7 ) Pub Date : 2020-09-23 , DOI: 10.1126/sciadv.abb3755
Su Xu 1 , Fu-Yan Dong 1 , Wen-Rui Guo 2 , Dong-Dong Han 1 , Chao Qian 3, 4 , Fei Gao 3, 4 , Wen-Ming Su 2 , Hongsheng Chen 3, 4 , Hong-Bo Sun 1, 5
Affiliation  

As a superior self-protection strategy, invisibility has been a topic of long-standing interest in both academia and industry, because of its potential for intriguing applications that have only appeared thus far in science fiction. However, due to the strong dispersion of passive materials, achieving cross-wavelength invisibility remains an open challenge. Inspired by the natural ecological relationship between transparent midwater oceanic animals and the cross-wavelength detection strategy of their predators, we propose a cross-wavelength invisibility concept that integrates various invisibility tactics, where a Boolean metamaterial design procedure is presented to balance divergent material requirements over cross-scale wavelengths. As proof of concept, we experimentally demonstrate longwave cloaking and shortwave transparency simultaneously through a nanoimprinting technique. Our work extends the concept of stealth techniques from individual invisibility tactics targeting a single-wavelength spectrum to an integrated invisibility tactic targeting a cross-wavelength applications and may pave the way for development of cross-wavelength integrated metadevices.



中文翻译:

跨波长不可见性与各种不可见性策略相结合。

作为一种出色的自我保护策略,隐身性一直是学术界和工业界长期关注的话题,因为它具有吸引人的用途的潜力,而这种用途迄今为止仅在科幻小说中出现过。然而,由于无源材料的强分散性,实现跨波长的隐形性仍然是一个开放的挑战。受透明中水海洋动物之间的自然生态关系及其捕食者的跨波长检测策略的启发,我们提出了一种跨波长不可见性概念,该概念整合了各种不可见性策略,其中提出了布尔超材料设计程序,以平衡不同材料的需求。跨尺度波长。作为概念证明,我们通过纳米压印技术实验性地证明了长波隐身和短波透明度。我们的工作将隐身技术的概念从针对单个波长频谱的单个隐身策略扩展到针对跨波长应用程序的集成隐身策略,并可能为跨波长集成元设备的开发铺平道路。

更新日期:2020-09-24
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