Abstract

Pressure-induced correlation field splitting of the CH₂ rocking mode in the infrared spectra of methylene chain systems such as polyethylene, <i>n</i>-alkanes, surfactants, fatty acids, and model and biomembranes provides important information concerning the interchain structural and dynamic properties of these systems. The pressure at which the correlation field splitting starts is a measure of the orientational disorder of methylene chains along the chain axis. Moreover, the integrated intensity ratio between the correlation field component bands of the CH₂ rocking mode is a measure of the relative orientation of the zig-zag planes between neighboring methylene chains.

Ultrafast-laser-absorption spectroscopy in the mid-infrared for single-shot, calibration-free temperature and species measurements in low- and high-pressure combustion gases

Ryan J. Tancin and Christopher S. Goldenstein
Opt. Express 29(19) 30140-30154 (2021)

Infrared Spectroscopy at High Pressures: Polarized Spectra of Single Crystals of Acetonitrile

R. J. Jakobsen and Y. Mikawa
Appl. Opt. 9(1) 17-22 (1970)

Infrared Spectroscopy of Biologic Materials in Aqueous Solutions

E. R. Blout and H. Lenormant
J. Opt. Soc. Am. 43(11) 1093-1095 (1953)

Variable pressure infrared diode laser spectroscopy: a new method for trace-gas monitoring

Sébastien Dusanter, Bernard Lemoine, Benjamin Hanoune, and Pascal Devolder
Appl. Opt. 41(24) 5142-5147 (2002)

Realization of an ultra-high pressure dynamic calibrate system by drop hammer based on fiber Bragg grating strain sensor

Bo-Ning Zhou, Chun–Ming Bi, Hui Zhan, Xu Jiang, and Guo-Hui Lyu
Opt. Express 30(14) 25855-25864 (2022)