Electromagnetic metasurfaces: from concept to applications

• 来源期刊: 科学通报（英文版）
• 年，卷（期）: 2019,（12）
• 页码范围: 791-792
• 页数: 2页
• 语种: 英文

摘要

Electromagnetic or optical metasurfaces,as a kind of quasi-two-dimensional artificial interface,are patterned subwavelength structures within ultrathin thickness that interact strongly with electromagnetic waves.The history of metasurface was traced back to the two-dimensional electromagnetic bandgap structure [1],which may be regarded as the beginning of metasurface research.Such metasurface with high impedance has been widely used in reducing the size of antennas and improving their performance.