Investigating the low-frequency vibrations of chlorophyll derivatives using terahertz spectroscopy

Coquillat, Dominique and O'Connor, Emma and Brouillet, Etienne V. and Meriguet, Yoann and Bray, Cedric and Nelson, David J. and Faulds, Karen and Torres, Jeremie and Dyakonova, Nina; Razeghi, Manijeh and Baranov, Alexei N., eds. (2021) Investigating the low-frequency vibrations of chlorophyll derivatives using terahertz spectroscopy. In: Terahertz Emitters, Receivers, and Applications XII. Proceedings of SPIE - The International Society for Optical Engineering . SPIE, USA. ISBN 9781510644922 (https://doi.org/10.1117/12.2593589)

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Abstract

The terahertz absorption spectra of sodium magnesium chlorophyllin (Chl-Mg-Na) and sodium copper chlorophyllin (Cu-Chl), two major members of the chlorophyll derivative family, have been measured in the range 0.2-3.0 THz (6.6-100 cm-1), at room temperature. Additionally, surface-enhanced Raman scattering spectroscopy was used to supplement data in the higher frequency range. The capability of terahertz spectroscopy for quantitative characterization of Chl-Mg-Na intermolecular vibrations was investigated and the sensitivity of the 1.82-THz feature with degree of hydration by changes in the molecular environment was examined. For Cu-Chl derivative, a broad feature was observed around 1.8 THz which currently hinders clear Cu-Chl identification and quantification.

  • Item type:Book Section
    ID code:80007
    Dates:
    Date
    Event
    1 August 2021
    Published
    18 April 2021
    Accepted
    Notes:Copyright 2021 Society of Photo‑Optical Instrumentation Engineers (SPIE). One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this publication for a fee or for commercial purposes, and modification of the contents of the publication are prohibited.
    Subjects:Technology > Electrical engineering. Electronics Nuclear engineering
    Science > Physics > Optics. Light
    Department:UNSPECIFIED
    Depositing user: Pure Administrator
    Date deposited:30 Mar 2022 09:36
    Last modified:08 Apr 2024 14:12
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/80007
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