Terahertz pump-probe of liquid water at 12.3 THz

2021 ◽  
Author(s):  
Fabio Novelli ◽  
Claudius Hoberg ◽  
Ellen M. Adams ◽  
J. Michael Klopf ◽  
Martina Havenith
Keyword(s):  
Liquid Water ◽  
Nonlinear Response ◽  
Thz Spectroscopy ◽  
Water Network ◽  
Pump Probe ◽  
Dynamical Complexity ◽  
Hydrogen Bonded

The dynamical complexity of the hydrogen-bonded water network can be investigated with intense Terahertz (THz) spectroscopy, which can drive the liquid into the nonlinear response regime and probe anharmonicity effects....

scholarly journals Nonlinear TeraHertz Transmission by Liquid Water at 1 THz

2020 ◽  
Vol 10 (15) ◽  
pp. 5290
Author(s):  
Fabio Novelli ◽  
Chun Yu Ma ◽  
Nidhi Adhlakha ◽  
Ellen M. Adams ◽  
Thorsten Ockelmann ◽  
...  
Keyword(s):  
Liquid Water ◽  
Nonlinear Response ◽  
Open Aperture ◽  
Thz Spectroscopy ◽  
Sample Holder ◽  
Optical Techniques ◽  
Minimal Volume ◽  
Transient Network ◽  
Terahertz Transmission ◽  
Hydrogen Bonded

The solvation properties of liquid water originate from the transient network of hydrogen-bonded molecules. In order to probe the coupling between the different modes of this network, nonlinear terahertz (THz) spectroscopy techniques are required. Ideally, these techniques should use a minimal volume and capitalize on sensitive field-resolved detection. Here we performed open aperture z-scan transmission experiments on static liquid cells, and detect the THz fields with electro-optical techniques. We show that it is possible to quantify the nonlinear response of liquid water at ~1 THz even when large signals originate from the sample holder windows.

scholarly journals Nonlinear response of vibrational excitons: Simulating the two-dimensional infrared spectrum of liquid water

2009 ◽  
Vol 130 (20) ◽  
pp. 204110 ◽  
Author(s):  
A. Paarmann ◽  
T. Hayashi ◽  
S. Mukamel ◽  
R. J. D. Miller
Keyword(s):  
Infrared Spectrum ◽  
Liquid Water ◽  
Nonlinear Response ◽  
Two Dimensional

An Upper Bound to the Mole Fraction of Unbonded H2O in Liquid Water at 25 °C

1972 ◽  
Vol 50 (7) ◽  
pp. 1088-1088 ◽  
Author(s):  
Fabio Lenzi
Keyword(s):  
Mole Fraction ◽  
Liquid Water ◽  
Upper Bound ◽  
Ideal Solution ◽  
Hydrogen Bonded

Liquid water at 25 °C has been treated as a semi-ideal solution of relatively very volatile unbonded monomer dissolved in non-volatile hydrogen-bonded solvent. A mole fraction of less than 0.0016 has been found for unbonded water, in agreement with Stevenson's conclusion.

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