THz water, derived from natural minerals, escalates solvation and biological activity via resonating water molecules. Its bactericidal version exploits alkalinity and electrical properties to dissolve microbial cell membranes.

This review introduces the THz spectral imaging technique for moisture detection, the Debye relaxation model, and other related theories, reviews the research progress of the terahertz wave detection of water, and finally discusses the challenges faced by the terahertz wave detection of water and gives a positive outlook, which provides ...

2020年8月4日 · Here, we use an intense and ultrabroadband THz pulse (peak electric field strength of 14.9 MV/cm, centre frequency of 3.9 THz, and bandwidth of 1–10 THz) to resonantly excite intermolecular...

2024年4月24日 · In this study, we optically measured water-filled rectangular loop nanogaps with gap widths of 2 to 20 nm to determine refractive indices of nanoconfined water at terahertz (THz) frequencies between 0.1 and 1.5 THz, from which one can access long-range collective dynamics responsible for solvation dynamics (52–56) .

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.

2023年6月30日 · Cherkasova et al. used THz spectroscopy to characterize the transformation of water in glucose from free water to bound water by measuring the THz spectra of samples in three states: dry glucose, wet glucose (suspension), and an aqueous glucose solution, and extracting the absorption and refraction spectra of bound water in the range of 0.07 ...

We explore the potential of liquid water as efficient scheme of table-top THz generator and detector. Further underlying physical mechanism, such as the ultrafast electron migration and solvation need to be considered.

The choice of terahertz frequency is essential for achieving the biological effects of terahertz with high efficiency and low energy consumption. The complex hydrogen bond network of water possesses a broad terahertz absorption peak.

2022年6月30日 · Here we provide microscopic insights into this process by monitoring the dissipation of energy in salt solutions using time-resolved terahertz–Raman spectroscopy. We resonantly drive the...

2017年9月27日 · The experimental set-up used to generate terahertz waves from liquid water. Researchers focus the optical pump beam into the water film and use a series of filters and off-axis parabolic mirrors (OAPMs) to detect the terahertz signal and block any other light waves simultaneously generated from the water film.