QQ客服 官方微博 反馈留言

	Controlling Energy Radiations of Electromagnetic Waves via Frequency Coding Metamaterials
	Wu, Haotian ; Liu, Shuo ; Wan, Xiang ; Zhang, Lei ; Wang, Dan ; Li, Lianlin ; Cui, Tie Jun
刊名	ADVANCED SCIENCE
	2017
关键词	energy radiations frequency coding metamaterials multiple controls phase sensitivity GROUND-PLANE CLOAK ANOMALOUS REFRACTION TERAHERTZ WAVES NEGATIVE INDEX METASURFACES
DOI	10.1002/advs.201700098
英文摘要	Metamaterials are artificial structures composed of subwavelength unit cells to control electromagnetic (EM) waves. The spatial coding representation of metamaterial has the ability to describe the material in a digital way. The spatial coding metamaterials are typically constructed by unit cells that have similar shapes with fixed functionality. Here, the concept of frequency coding metamaterial is proposed, which achieves different controls of EM energy radiations with a fixed spatial coding pattern when the frequency changes. In this case, not only different phase responses of the unit cells are considered, but also different phase sensitivities are also required. Due to different frequency sensitivities of unit cells, two units with the same phase response at the initial frequency may have different phase responses at higher frequency. To describe the frequency coding property of unit cell, digitalized frequency sensitivity is proposed, in which the units are encoded with digits "0" and "1" to represent the low and high phase sensitivities, respectively. By this merit, two degrees of freedom, spatial coding and frequency coding, are obtained to control the EM energy radiations by a new class of frequency-spatial coding metamaterials. The above concepts and physical phenomena are confirmed by numerical simulations and experiments.; National Natural Science Foundation of China [61631007, 61571117, 61522106, 61501112, 61501117, 61401089]; 111 Project [111-2-05]; Foundation of National Excellent Doctoral Dissertation of China [201444]; SCI(E); ARTICLE; 9; 4
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/471048]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Wu, Haotian,Liu, Shuo,Wan, Xiang,et al. Controlling Energy Radiations of Electromagnetic Waves via Frequency Coding Metamaterials[J]. ADVANCED SCIENCE,2017.
APA	Wu, Haotian.,Liu, Shuo.,Wan, Xiang.,Zhang, Lei.,Wang, Dan.,...&Cui, Tie Jun.(2017).Controlling Energy Radiations of Electromagnetic Waves via Frequency Coding Metamaterials.ADVANCED SCIENCE.
MLA	Wu, Haotian,et al."Controlling Energy Radiations of Electromagnetic Waves via Frequency Coding Metamaterials".ADVANCED SCIENCE (2017).

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。