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The features in the range of 750 1200 cm−1 are due to overlapping GaN:Si and sapphire reststrahlen bands and interface effects.
The hard X-ray spectra of small subset of accreting pulsars show absorption-like line features in the range 10 100 keV.
Most of the spectral features in the range 200 – 1000 cm−1 are successfully reproduced by our model, except the spectra of anomalously cold areas, where more sophisticated model is needed, which should include the CO2 surface deposits and condensation clouds near the surface.
Thus, surface features in the range of 15 to 30 µm can influence rat whisker kinetics and performance on sensory tasks.
Reflectance spectra (Fig. 2(c)) contain characteristic hemoglobin features in the range 540 - 580 nm.
Due to the long wavelength, THz imaging can illustrate features in the range 1 3 mm, which is not enough for biomedical applications.
We find two substantial changes in the UV diffuse reflectance spectra of MgO nanopowders resulting from compaction: the emergence of new absorption features in the range 4.0−5.5 eV and a depression in intensity at 5.7 eV.
