Terahertz spectroscopic analysis of crystal orientation in polymers

Chisato Azeyanagi, Takuya Kaneko, Yoshimichi Ohki

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


Terahertz time-domain spectroscopy (THz-TDS) is attracting keen attention as a new spectroscopic tool for characterizing various materials. In this research, the possibility of analyzing the crystal orientation in a crystalline polymer by THz-TDS is investigated by measuring angle-resolved THz absorption spectra for sheets of poly(ethylene terephthalate), poly(ethylene naphthalate), and poly(phenylene sulfide). The resultant angle dependence of the absorption intensity of each polymer is similar to that of the crystal orientation examined using pole figures of X-ray diffraction. More specifically, THz-TDS can indicate the alignment of molecules in polymers.

Original languageEnglish
Article number050302
JournalJapanese journal of applied physics
Issue number5
Publication statusPublished - 2018 May

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)


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