Study on terahertz spectral properties of pores in glass fiber composites

1.College of Instrumentation & Electrical Engineering, Jilin University, Changchun 130061, China;2.Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China;3.Chongqing Polycomp International Corporation, Chongqing 400082, China;4.Harbin FRP Institute, Harbin 150036, China

Clc Number:


Fund Project:

Supported by the Major Instrumentation Development Program of the Chinese Academy of Sciences (ZDKYYQ20220008), Scientific Reseorch Planning Pragram of Edncation Department of Jilin Province (1658557217432)

  • Article
  • |
  • Figures
  • |
  • Metrics
  • |
  • Reference
  • |
  • Related
  • |
  • Cited by
  • |
  • Materials
  • |
  • Comments

    The interaction mechanism between terahertz waves and pore defect in glass fiber composites is explored, and the interaction relationship between porosity and terahertz characteristic parameters (refractive index, extinction coefficient and transmission coefficient) is analyzed at 0.075 and 0.713 THz frequency points. The experimental results show that the density and refractive index of glass fiber composites decrease with the increase in porosity. When the frequency is 0.075 THz, the extinction coefficient decreases and the transmission coefficient increases with the increase in porosity based on Rayleigh scattering theory. At 0.713 THz, based on Mie scattering theory, the extinction coefficient increases and the transmission coefficient decreases with the increase in porosity. In addition, the complex and changeable pore morphology results in a non-unique correspondence between porosity and terahertz characteristic parameters. When the different samples have the same porosity, the terahertz characteristic parameters are not the same.

    Cited by
Get Citation

XU Tuo, LU Xing-Xing, SHEN Yan, ZHANG Jin-Bo, CHANG Tian-Ying, CUI Hong-Liang, ZHANG Jin. Study on terahertz spectral properties of pores in glass fiber composites[J]. Journal of Infrared and Millimeter Waves,2023,42(2):201~207

Article Metrics
  • Abstract:
  • PDF:
  • HTML:
  • Cited by:
  • Received:July 18,2022
  • Revised:March 07,2023
  • Adopted:August 31,2022
  • Online: March 07,2023
  • Published: