Index of refraction and optical absorption edge measurments, on Ge xSe1-x glasses of a composition ranging from pure sélénium to GeSe2, are reported. The variations of the optical absorption coefficient and of the index of refraction with x are strongly correlated to those of the Raman spectrum with the same parameter. This result is interpreted refering to the possible types of chemical bond in this compounds.Nous présentons des résultats de mesures de l'indice de réfraction et de la limite d'absorption des verres GexSe1- x de composition comprise entre le sélénium pur et GeSe2. Il apparaît d'après ces mesures une étroite corrélation des variations du coefficient d'absorption, de l'indice de réfraction avec x et celle du spectre Raman avec...
We designed and prepared several groups of glasses with a mean coordination number (MCN) from 2.2 to...
Germanium-based sulfide glasses in the Ge-Sb-S system have been elaborated and studied. A relationsh...
Analysis of the Micro-Raman spectra of GexAsxSe1–2x (x = 0.05–0.30) amorphous chalcogenide glasses a...
Optical properties of chalcogenide glasses, GexAS ySe100-x-y (33≤ × ≤39 and 12≤ y ≤16) were studied ...
International audienceA systematic investigation of the optical and structural properties of chalcog...
The Raman spectra of binary GexS1-x chalcogenide glasses have been measured for various compositions...
Having previously studied the local order of GexSe1-x glasses between pure selenium and x = 1/3, we ...
We prepared five samples of chemically stoichiometric GexAsySe1-x-y glasses in order to examine whet...
The refractive indices (n) and thermo-optic coefficients (ζ) of Ge14AsxSe86 − x and GexAs12Se88 − x ...
Optical properties of the glasses from the systems with a constant ratio of Ge/Se and different conc...
We explored the structure and physical properties of Ge15Sb20Se65-xSx (with x = 0, 16.25, 32.5, 48.7...
The optical and structural properties of Ge-As-Se glasses have been studied using Raman, UV-Vis-IR, ...
Atomic pair distribution functions (PDFs) obtained from high energy x-ray synchrotron radiation and ...
The optical absorption of amorphous Se 1-xGe x has been measured in the range 10 to 110 cm-1 at 4.2 ...
We have prepared three groups of Ge-As-Se glasses in which the Se content is 5.5 mol%, 10 mol%, and ...
We designed and prepared several groups of glasses with a mean coordination number (MCN) from 2.2 to...
Germanium-based sulfide glasses in the Ge-Sb-S system have been elaborated and studied. A relationsh...
Analysis of the Micro-Raman spectra of GexAsxSe1–2x (x = 0.05–0.30) amorphous chalcogenide glasses a...
Optical properties of chalcogenide glasses, GexAS ySe100-x-y (33≤ × ≤39 and 12≤ y ≤16) were studied ...
International audienceA systematic investigation of the optical and structural properties of chalcog...
The Raman spectra of binary GexS1-x chalcogenide glasses have been measured for various compositions...
Having previously studied the local order of GexSe1-x glasses between pure selenium and x = 1/3, we ...
We prepared five samples of chemically stoichiometric GexAsySe1-x-y glasses in order to examine whet...
The refractive indices (n) and thermo-optic coefficients (ζ) of Ge14AsxSe86 − x and GexAs12Se88 − x ...
Optical properties of the glasses from the systems with a constant ratio of Ge/Se and different conc...
We explored the structure and physical properties of Ge15Sb20Se65-xSx (with x = 0, 16.25, 32.5, 48.7...
The optical and structural properties of Ge-As-Se glasses have been studied using Raman, UV-Vis-IR, ...
Atomic pair distribution functions (PDFs) obtained from high energy x-ray synchrotron radiation and ...
The optical absorption of amorphous Se 1-xGe x has been measured in the range 10 to 110 cm-1 at 4.2 ...
We have prepared three groups of Ge-As-Se glasses in which the Se content is 5.5 mol%, 10 mol%, and ...
We designed and prepared several groups of glasses with a mean coordination number (MCN) from 2.2 to...
Germanium-based sulfide glasses in the Ge-Sb-S system have been elaborated and studied. A relationsh...
Analysis of the Micro-Raman spectra of GexAsxSe1–2x (x = 0.05–0.30) amorphous chalcogenide glasses a...