학술논문

Ultrawideband and High-Resolution Terahertz Spectroscopy: Structural Identification of Glucose
Document Type
article
Source
Photonics, Vol 9, Iss 9, p 602 (2022)
Subject
terahertz
spectroscopy
DAST-DFG
density functional theory
glucose
Applied optics. Photonics
TA1501-1820
Language
English
ISSN
2304-6732
Abstract
We report on the development of an ultrawideband and high-resolution THz spectroscopic system, which operates over a frequency range of 2–13.5 THz. This work goes beyond conventional THz spectroscopic measurements and demonstrates the capacity to differentiate D- and L-glucoses, which have the same molecular conformation and crystal structure. Furthermore, this system facilitates the structural identification of glucose microcrystals, which exists in α- and β-forms, revealing that L-glucose microcrystals are formed of a mixture of α- and β-D-glucose with approximately equal weight.