• 文献标题:   Fast-printed, large-area and low-cost terahertz metasurface using laser-induced graphene
  • 文献类型:   Article
  • 作  者:   WANG ZY, WANG GC, HU B, LIU WG, HUANG JZ, XIONG CJ, ZHANG Y, LIU J, WANG YT
  • 作者关键词:   terahertz, metasurface, laserinduced graphene, fast fabrication
  • 出版物名称:   CARBON
  • ISSN:   0008-6223 EI 1873-3891
  • 通讯作者地址:  
  • 被引频次:   9
  • DOI:   10.1016/j.carbon.2021.11.010 EA NOV 2021
  • 出版年:   2022

▎ 摘  要

Terahertz (THz) technology has made promising progress and attracted wide interests in the fields of communications, security, agriculture, and biological sciences. However, the lack of modulation materials and the great challenge of the miniaturized system have become the huge restriction of this technology. Although artificial metamaterials have shown impressive electromagnetic performances in this band, they suffer complicated and high-cost fabrication processes. In this work, we find that due to the high conductivity, laser-induced graphene (LIG) can be applied in THz wave modulation. A LIG metasurface fabrication system is developed based on a nanosecond laser, a telecentric scan lens, and scanning mirrors. Owing to the ultra-small focal spot (