Review on the terahertz metasensor: from featureless refractive index sensing to molecular identification

The terahertz (THz) wave is at the intersection between photonics and electronics in the electromagnetic spectrum. Since the vibration mode of many biomedical molecules and the weak interaction mode inside the molecules fall in the THz regime, utilizing THz radiation as a signal source to operate substance information sensing has its unique advantages. Recently, the metamaterial sensor (metasensor) has greatly enhanced the interaction between signal and substances and spectral selectivity on the subwavelength scale. However, most past review articles have demonstrated the THz metasensor in terms of their structures, applications, or materials. Until recently, with the rapid development of metasensing…

• NN
  National Natural Science Foundation of China

  Award: 62275157
• HE
  Higher Education Discipline Innovation Project

  Award: D18014
• SS
  Shanghai Shuguang Program

  Award: 18SG44