期刊
JOURNAL OF PHYSICAL AND CHEMICAL REFERENCE DATA
卷 36, 期 1, 页码 1-18出版社
AMER INST PHYSICS
DOI: 10.1063/1.2360986
关键词
pure water; permittivity; dielectric constant; interpolation function; Debye relaxation; Lorentz resonance; microwave; far infrared; remote sensing
All the currently available experimental permittivity data for pure water are used to derive an interpolation function that precisely represents epsilon(nu,t,) at standard atmospheric pressure, for frequencies and temperatures in the ranges 0 <=nu <= 25 THz and 0 <= t <= 100 degrees C. The permittivity data is represented in terms of relaxations and resonances processes. There are three relaxations in the microwave region and two resonances in the far infrared. The temperature dependence of the relaxation and resonance parameters are determined. For example, at 25 degrees C the three relaxation frequencies are 18.56 GHz, 167.83 GHz, 1.944 THz and the two resonance frequencies are 4.03 and 14.48 THz.(c) 2007 American Institute of Physics.
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