title: Terahertz absorption spectra and potential energy distribution of liquid crystals.
abstract: In this work, the terahertz (THz) absorption spectra of a set of nematic liquid crystals were studied using the density functional theories (DFT). An accurate assignment of the vibrational modes corresponding to absorption frequencies were performed using potential energy distribution (PED) in a frequency range of 0-3 THz. The impacts of different core structures on THz absorption spectra were discussed. The results indicate that scope of application must be considered in the LC-based THz device designing. This proposed work may give a useful suggestion on the design of novel liquid crystal material in THz wave.
authors.affiliation: College of Physics and Electronic Engineering, Henan Normal University, Xinxiang 453007, China; College of Physics and Electronic Engineering, Xinxiang University, Xinxiang 453003, China.
authors.forename: Zezhang
authors.initials: Z
authors.lastname: Chen
authors.affiliation: College of Physics and Electronic Engineering, Henan Normal University, Xinxiang 453007, China.
authors.forename: Yurong
authors.initials: Y
authors.lastname: Jiang
authors.affiliation: College of Physics and Electronic Engineering, Henan Normal University, Xinxiang 453007, China.
authors.forename: Lulu
authors.initials: L
authors.lastname: Jiang
authors.affiliation: College of Physics and Electronic Engineering, Henan Normal University, Xinxiang 453007, China. Electronic address: hengma@henannu.edu.cn.
authors.forename: Heng
authors.initials: H
authors.lastname: Ma
keywords: Absorption spectra; DFT; LCs; PED; THz; Vibration assignment