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Transmission-type THz-TDS was applied to characterize water on super-hydrophilic surface of anatase-TiO2 layer fabricated by plasma-assisted deposition. Absorption coefficient of water with the thickness of 300 mm on the layer was in good agreement to that of free water before the surface was converted to the super-hydrophilicity but decreased on the super-hydrophilic surface after UV-irradiation...
A transmission type THz-TDS was applied to study dielectric behavior of water including NaCl and MgCl2. Imaginary part of the complex dielectric constant below 1THz and the dielectric slow relaxation time were evaluated and disclosed that they are dependent on the type of salt and the concentration.
Terahertz time-domain spectroscopy (TDS) is advantageous to analyze the absorption spectrum of water since the terahertz electromagnetic waves are absorbed very well. The measurement confirms the absorption coefficient of the pure water increases with the frequency from 0.04 THz to 0.8 THz. Moreover, the absorption increases with an increment of the concentration of Na+ ion in the pure water especially...
Terahertz time-domain spectroscopy was demonstrated using quartz cells to seal various thick water layers with some type of waters such as deionized water, distilled water, processed water in high magnetic field and the non-processed water. Relatively thick water layer above 200 mum suitable to measure the transparent spectra. The transmittance THz-spectra indicates the absorption of the processed...
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