%0 Conference Paper %F Oral %T Analysis of sodium copper chlorophyllin and sodium magnesium chlorophyllin by time-domain THz spectroscopy %+ Laboratoire Charles Coulomb (L2C) %+ University of Strathclyde [Glasgow] %+ Institut d’Electronique et des Systèmes (IES) %A Bray, Cedric %A Dyakonova, Nina %A O'Connor, Emma %A Brouillet, Etienne %A Meriguet, Yoann %A Nelson, David, J. %A Faulds, Karen %A Torres, Jeremie %A Coquillat, Dominique %< avec comité de lecture %3 2022 47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz) %B 2022 47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz) %C Delft, France %I IEEE %8 2022-08-28 %D 2022 %R 10.1109/IRMMW-THz50927.2022.9895466 %Z Physics [physics]Conference papers %X 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 0.2−2.5 THz, at room temperature. The capability of terahertz spectroscopy for quantitative characterization of Chl-Mg-Na intermolecular vibrations was investigated and the sensitivity of transitions with degree of hydration by changes in the molecular environment was examined. For the Cu-Chl derivative, a broad feature was observed around 1.8 THz which currently hinders clear Cu-Chl identification and quantification. %G English %2 https://hal.science/hal-03837865/document %2 https://hal.science/hal-03837865/file/bray-IRMMW-THz2022-DC4-Abstract%20final%20submission-2p-V4.pdf %L hal-03837865 %U https://hal.science/hal-03837865 %~ CNRS %~ IES %~ L2C %~ UNIV-MONTPELLIER %~ UM-2015-2021 %~ UM-EPE