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Observation of sublimation of ice using terahertz spectroscopy.


ABSTRACT: Although many studies have investigated the phase change of water, few have focused on the sublimation of ice. This study revealed that ice sublimation can be observed using terahertz (THz) spectroscopy. From measurements in the range of 210-270 K, the sublimation was observed over the entire temperature range and the rate of sublimation was increased proportionally with temperature. Particularly on a time scale of a few hundred minutes, the sublimation progresses visibly above 250 K. Above a certain temperature, the absorption coefficient increased during sublimation. These findings suggest that an interesting phenomenon may occur in the phase change of water at sub-zero temperatures, indicating that THz spectroscopy would be useful for measuring water and ice.

SUBMITTER: Matsumura K 

PROVIDER: S-EPMC7540754 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature

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Observation of sublimation of ice using terahertz spectroscopy.

Matsumura Keisuke K   Kawase Kodo K   Takeya Kei K  

Royal Society open science 20200930 9


Although many studies have investigated the phase change of water, few have focused on the sublimation of ice. This study revealed that ice sublimation can be observed using terahertz (THz) spectroscopy. From measurements in the range of 210-270 K, the sublimation was observed over the entire temperature range and the rate of sublimation was increased proportionally with temperature. Particularly on a time scale of a few hundred minutes, the sublimation progresses visibly above 250 K. Above a ce  ...[more]

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