Far-infrared laser radiation is used to study the lattice absorption of a TlCl crystal over a large temperature range. We found a strong absorption band caused by phonon difference processes where longitudinal and transverse acoustic phonons with wave vectors at the Brillouin zone boundary are involved
Une étude sur la propagation des phonons à une fréquence près de 1 THz dans un cristal d'Al2O3 est p...
Low-temperature far-infrared absorption measurements have been made on six different alkaline earth:...
We have repeated studies of the infrared reflection spectra of LiH and LiD crystals (cleaved under v...
Far-infrared laser radiation is used to study the lattice absorption of a TlCl crystal over a large ...
A new method for detection of zone-boundary phonons is reported. Phonons are detected by phonon diff...
A new method for detection of zone-boundary phonons is presented. Phonons generated by nonradiative ...
The impurity induced band mode absorption of CsI:Li+, Na+, Rb+, Tl+ has been studied in the far infr...
Author Institution: Physikalisches Institut Universitat Freiburg, Freiburg, Germany.Defect-induced a...
The far-infrared absorption in the phonon band of CsBr due to Na+, K+, Rb+, In+, and Tl+ impurities ...
We report on the direct excitation of 246 GHz longitudinal acoustic phonons in silicon doping superl...
The far infrared optical properties and complex dielectric response functions of two alkali halide c...
Triglycine seleniate shows a trichroic infrared spectrum very rich in absorption lines. In the near ...
Measurements of the far infrared absorption due to In+ and Tl+ impurities in CsBr and CsI single cry...
We have made a detailed theoretical study of the long-wavelength absorption of NaCl, KCl, KBr, and K...
Author Institution: Universite de Nancy Institut de Physique, Nancy, France.One of the fruits of the...
Une étude sur la propagation des phonons à une fréquence près de 1 THz dans un cristal d'Al2O3 est p...
Low-temperature far-infrared absorption measurements have been made on six different alkaline earth:...
We have repeated studies of the infrared reflection spectra of LiH and LiD crystals (cleaved under v...
Far-infrared laser radiation is used to study the lattice absorption of a TlCl crystal over a large ...
A new method for detection of zone-boundary phonons is reported. Phonons are detected by phonon diff...
A new method for detection of zone-boundary phonons is presented. Phonons generated by nonradiative ...
The impurity induced band mode absorption of CsI:Li+, Na+, Rb+, Tl+ has been studied in the far infr...
Author Institution: Physikalisches Institut Universitat Freiburg, Freiburg, Germany.Defect-induced a...
The far-infrared absorption in the phonon band of CsBr due to Na+, K+, Rb+, In+, and Tl+ impurities ...
We report on the direct excitation of 246 GHz longitudinal acoustic phonons in silicon doping superl...
The far infrared optical properties and complex dielectric response functions of two alkali halide c...
Triglycine seleniate shows a trichroic infrared spectrum very rich in absorption lines. In the near ...
Measurements of the far infrared absorption due to In+ and Tl+ impurities in CsBr and CsI single cry...
We have made a detailed theoretical study of the long-wavelength absorption of NaCl, KCl, KBr, and K...
Author Institution: Universite de Nancy Institut de Physique, Nancy, France.One of the fruits of the...
Une étude sur la propagation des phonons à une fréquence près de 1 THz dans un cristal d'Al2O3 est p...
Low-temperature far-infrared absorption measurements have been made on six different alkaline earth:...
We have repeated studies of the infrared reflection spectra of LiH and LiD crystals (cleaved under v...
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