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

Vasilis G. Gregoriou; James L. Chao; Hirokazu Toriumi; Curtis A. Marcott; Isao Noda; Richard Alan Palmer

doi:10.1117/12.56295

1 March 1992 Time-resolved vibrational spectroscopy of liquid crystals and polymer films using step-scan 2-D FTIR

Vasilis G. Gregoriou, James L. Chao, Hirokazu Toriumi, Curtis A. Marcott, Isao Noda, Richard Alan Palmer

Proceedings Volume 1575, 8th Intl Conf on Fourier Transform Spectroscopy; (1992) https://doi.org/10.1117/12.56295
Event: Eighth International Conference on Fourier Transform Spectroscopy, 1991, Lubeck-Travemunde, Germany

Abstract

The application of step-scan interferometry to the determination of two-dimensional infrared (2-D FT-IR) spectra is reported here. Two experiments are 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.

Citation Download Citation

Vasilis G. Gregoriou, James L. Chao, Hirokazu Toriumi, Curtis A. Marcott, Isao Noda, and Richard Alan Palmer "Time-resolved vibrational spectroscopy of liquid crystals and polymer films using step-scan 2-D FTIR", Proc. SPIE 1575, 8th Intl Conf on Fourier Transform Spectroscopy, (1 March 1992); https://doi.org/10.1117/12.56295

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available