Quantitative evaluation of fiber structure by using coherent terahertz wave

Chao Tang, Tadao Tanabe, Shintaro Yudate, Yutaka Oyama

Research output: Contribution to journalArticlepeer-review


The structures of fiber, including the distance between fibers and the arrangement direction of fibers, were quantitatively investigated using coherent terahertz (THz) wave. Composite fibers with periodically arranged 57% silk and 43% nylon are measured, then the specific absorption spectra due to intermolecular vibration and interference effect are observed in THz frequency region. It is shown that, not only the period and direction of woven but also the type of material could be specified by the THz spectroscopy. This study enlightens a novel method for fiber nondestructive inspection beyond microscopy imaging, which has potential to be applied in quality control, infrastructure disaster prevention.

Original languageEnglish
Pages (from-to)1-3
Number of pages3
JournalComposites Part B: Engineering
Publication statusPublished - 2019 Feb 15
Externally publishedYes

ASJC Scopus subject areas

  • Ceramics and Composites
  • Mechanics of Materials
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering


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