reststrahlen

reststrahlen

[′rest‚sträl·ən]
(nucleonics)
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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In particular, the specular component is ruled by Fresnel's law giving rise to first-derivative-like spectral bands from materials with k < 1 and/or to Reststrahlen (or inverted) bands when k [much greater than] 1, while the diffuse component appears as features that are very similar to those collected in transmission mode except for some differences in terms of relative band intensities [6, 15].
On the other hand, specular distortions due to the Reststrahlen effect have not appeared in the analyzed spectra, as expected by low absorption coefficient materials.
There may have been some contribution to this peak resulting from specular reflectance (Reststrahlen bands) from clay mineral Si-0 vibrations.
They prepared emissivity-ratio images which allowed generalized lithological discrimination, identification of areas with high silica content, and the first reported detection of the carbonate secondary reststrahlen feature.
Anwendung der Methode der Reststrahlen zur Prufung der Strahlungsgesetzes.