Article Dans Une Revue Infrared physics Année : 1981

An improved experimental method for reflection dispersive Fourier transform spectrometry of very heavily absorbing liquids

Résumé

An experimental method for the determination of the complex refractive index of a very heavily absorbing liquid at submillimetre wavelengths by dispersive Fourier transform reflection spectrometry is described. The method is superior to earlier dispersive reflection methods for liquids in that it avoids the collection of redundant data. This results in a halving of the experimental time, a reduced susceptibility to certain systematic errors and a small reduction in the random noise present in the derived values of the optical constants. The method is illustrated by the results of the determination of the optical constants of pure water and of a 5 M aqueous solution of NaCl in the spectral range between 50 and 400 cm−1.

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Chimie

Dates et versions

hal-04727322 , version 1 (09-10-2024)

Identifiants

Citer

J.R. Birch, M. Bennouna. An improved experimental method for reflection dispersive Fourier transform spectrometry of very heavily absorbing liquids. Infrared physics, 1981, 21 (4), pp.229-234. ⟨10.1016/0020-0891(81)90054-3⟩. ⟨hal-04727322⟩
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