Details

Autor(en) / Beteiligte

• Zhang, Rongxuan
• Zong, Guwei
• Wu, Shuangyue
• Song, Ruiqi
• Zhang, Xu
• Ge, Shijun
• Hu, Wei
• Wang, Lei
• Lu, Yanqing

Titel

Ultrathin flexible terahertz metamaterial bandstop filter based on laser-induced graphene

Ist Teil von

• Journal of the Optical Society of America. B, Optical physics, 2022-04, Vol.39 (4), p.1229

Erscheinungsjahr

2022

Quelle

OSA Publishing

Beschreibungen/Notizen

• An ultrathin, flexible metamaterial filter operated at terahertz (THz) frequencies based on one-step C O 2 laser-induced graphene (LIG) is proposed. The effects of laser machining parameters on conductivity and THz transmittance of the LIG are investigated, and a bandstop filter is fabricated from an ∼ 50 µ m polyimide film using the LIG method with relatively high laser power and scanning speed. At a blocking central frequency of 0.67 THz, the planar filter transmission is ∼ 40 % with only small variations for different bending angles. The simple, low-cost LIG method enables fabrication of THz metamaterial devices with great potential for THz imaging, sensing, and detection.