Temperature-independent non-linear terahertz transmission by liquid water

  • Liquid water is one of the most studied substances, yet many of its properties are difficult to rationalize. The uniqueness of water is rooted in the dynamic network of hydrogen-bonded molecules with relaxation time constants of about one picosecond. Terahertz fields oscillate on a picosecond timescale and are inherently suited to study water. Recent advances in non-linear terahertz spectroscopy have revealed large signals from water, which have been interpreted with different, sometimes competing, theoretical models. Here, we show that the non-linear transmission of liquid water at ~1 THz is equal at 21 and 4 °C, thus suggesting that the most appropriate microscopic models should depend weakly on temperature. Among the different mechanisms proposed to date, the resonant reorientation of hydrogen-bonded water molecules might be the most appropriate to describe all of the currently available experimental results.

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Author:Célia MillonORCiDGND, Johannes SchmidtGND, Sashary RamosORCiDGND, Eliane P. van DamORCiDGND, Adrian BuchmannORCiDGND, Clara J. SaracenoORCiDGND, Fabio NovelliORCiDGND
URN:urn:nbn:de:hbz:294-103525
DOI:https://doi.org/10.1063/5.0120417 
Parent Title (English):AIP advances
Publisher:American Institute of Physics
Place of publication:New York
Document Type:Article
Language:English
Date of Publication (online):2023/10/17
Date of first Publication:2022/11/16
Publishing Institution:Ruhr-Universität Bochum, Universitätsbibliothek
Tag:Open Access Fonds
Volume:12
Issue:11, Article 115319
First Page:115319-1
Last Page:115319-6
Note:
Article Processing Charge funded by the Deutsche Forschungsgemeinschaft (DFG) and the Open Access Publication Fund of Ruhr-Universität Bochum.
Institutes/Facilities:Lehrstuhl für Physikalische Chemie II
Dewey Decimal Classification:Naturwissenschaften und Mathematik / Chemie, Kristallographie, Mineralogie
open_access (DINI-Set):open_access
faculties:Fakultät für Chemie und Biochemie
Licence (English):License LogoCreative Commons - CC BY 4.0 - Attribution 4.0 International

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