Exploring the electromagnetic information of metasurfaces

• 来源期刊: 国家科学评论（英文版）
• 年，卷（期）: 2020,（12）
• 所属期刊栏目: RESEARCH HIGHLIGHTS
• 页码范围: 1845-1846
• 页数: 2页
• 语种: 英文
• DOI: 10.1093/nsr/nwaa237

摘要

Metasurfaces,a 2D counterpart of metamaterials,are made of planar subwavelength-scale meta-atoms with designed distributions.The meta-atoms of a metasurface can be used to cou-ple incident waves to free space with controllable amplitudes,phases and polarizations,yielding many novel pho-tonic devices such as optical meta-lenses[1-4].In recent years,with the bloom of information technologies,efforts have been made to braid metasurfaces with digital and information science,rendering the emergence of a digital-coding metasurface,field-programmable metasurface,information metasurface and intelligent metasurface[5-7].