Time-resolved vibrational spectroscopy of liquid crystals and polymer films using step-scan 2D FT-IR


Journal Article

© 1991 SPIE. All rights reserved. The application of step-scan interferometry to the determination of two dimensional infrared (2D FT-IR) spectra is reported here. Two experiments will be discussed; the first monitors the dynamic changes in the IR transmission spectrum of a polymer film due to the application of a small amplitude oscillatory stress. The other experiment involves a study of the kinetics of reorientation of uniaxially aligned nematic liquid crystals under the influence of external AC electric fields. In both cases, the dynamic IR signals originate from the reorientation of the electric-dipole transition moments, and thus provide information at the molecular level about the macroscopic behavior of the systems under investigation.

Full Text

Duke Authors

Cited Authors

  • Gregoriou, VG; Chao, JL; Toriumi, H; Marcott, C; Noda, I; Palmer, RA

Published Date

  • January 1, 1991

Published In

Volume / Issue

  • 1575 /

Start / End Page

  • 209 - 210

Electronic International Standard Serial Number (EISSN)

  • 1996-756X

International Standard Serial Number (ISSN)

  • 0277-786X

Digital Object Identifier (DOI)

  • 10.1117/12.56295

Citation Source

  • Scopus