Giant Third-Order Nonlinear Response of Liquids at Terahertz Frequencies

Tcypkin, Anton; Zhukova, Maria; Melnik, Maksim; Vorontsova, Irina; Kulya, Maksim S.; Putilin, S. É.; Kozlov, Sergei A.; Choudhary, Saumya; Boyd, Robert W.

doi:10.1103/physrevapplied.15.054009

Cited by 32 publications

(27 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…S7 in ref. 32 ). Also Ghalgaoui et al 35 recently measured the nonlinear response of liquid water at ∼1 THz, but proposed a different explanation.…”

Section: Introductionmentioning

confidence: 99%

Terahertz pump–probe of liquid water at 12.3 THz

Novelli

Hoberg

Adams

et al. 2022

Phys. Chem. Chem. Phys.

View full text Add to dashboard Cite

show abstract

“…S7 in ref. 32 ). Also Ghalgaoui et al 35 recently measured the nonlinear response of liquid water at ∼1 THz, but proposed a different explanation.…”

Section: Introductionmentioning

confidence: 99%

Terahertz pump–probe of liquid water at 12.3 THz

Novelli

Hoberg

Adams

et al. 2022

Phys. Chem. Chem. Phys.

View full text Add to dashboard Cite

show abstract

“…Recently, non-linear THz spectroscopy at 1 THz [11][12][13][14][15] and 12 THz 16,17 has been applied to the study of liquid water. While these experiments reported non-linear signals with similar sizes, i.e., a third-order nonlinear response with a magnitude of about  3 10 -13 cm 2 /V 2 (see Table 1 in ref.…”

Section: Introductionmentioning

confidence: 99%

Nonlinear TeraHertz Transmission by Liquid Water at 1 THz

Novelli

Adhlakha

et al. 2020

Applied Sciences

View full text Add to dashboard Cite

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.

show abstract

“…As clearly seen, the cubic nonlinearity contribution more than 30 times exceeds the quadratic one, which allows to observe the cubic nonlinear effect in the anisotropic crystal. This can be explained by the fact that in the THz range the value of nonlinear refractive index significantly exceeds the value for the visible and IR frequency ranges 16 . For lithium niobate, this excess is 4 orders of magnitude 15 .…”

Section: Resultsmentioning

confidence: 99%

“…Recently, it has been theoretically predicted and experimentally confirmed that the coefficient of the nonlinear refractive index of materials in the THz frequency range can be several orders of magnitude higher than its value for the same materials in the visible and near-IR spectral ranges 14 – 16 . This nonlinearity has a low-inertia mechanism; it means that high-speed THz photonics devices based on nonlinear effects are promising.…”

Section: Introductionmentioning

confidence: 99%

Radiation shift from triple to quadruple frequency caused by the interaction of terahertz pulses with a nonlinear Kerr medium

Artser

Melnik

Ismagilov

et al. 2022

Sci Rep

Self Cite

View full text Add to dashboard Cite

High-intensity optical radiation propagation in a transparent dielectric medium causes the phenomena of pulse self-action and radiation generation at triple frequencies due to the cubic nonlinearity of the medium. However, quadratic nonlinear effects usually outshine the cubic ones in anisotropic nonlinear crystals. In this work, we demonstrate that for certain experimental parameters the nonlinear effect of the third order can be stronger than the second order one in the MgO:$$\hbox {LiNbO}_3$$ LiNbO 3 crystal for terahertz frequency range. We experimentally and theoretically show that this effect can lead to the significant modification of the classical phenomenon of radiation generation at triple frequencies in the case when the pulse represents only one complete oscillation of the optical field. The experiment demonstrated that the phenomenon of generation of radiation at triple frequencies with respect to the frequency of the maximum spectral density in a nonlinear medium of the pulse disappears, and it is replaced by the generation of radiation at quadruple frequencies. The analysis confirms that this effect is based on the asymmetry and large width of the initial spectrum of such extremely short pulses in terms of the number of oscillations.

show abstract

Giant Third-Order Nonlinear Response of Liquids at Terahertz Frequencies

Cited by 32 publications

References 40 publications

Terahertz pump–probe of liquid water at 12.3 THz

Terahertz pump–probe of liquid water at 12.3 THz

Nonlinear TeraHertz Transmission by Liquid Water at 1 THz

Radiation shift from triple to quadruple frequency caused by the interaction of terahertz pulses with a nonlinear Kerr medium

Contact Info

Product

Resources

About