Zobrazeno 1 - 10
of 59
pro vyhledávání: '"Charles Jacoboni"'
From 1D to 3D fluorine octahedron networks in transition metal fluoride glasses: a 19F MAS NMR study
Publikováno v:
Journal of Non-Crystalline Solids. 258:110-118
The sensitivity of the 19F isotropic chemical shift to the environment of the fluorine atom is used to investigate transition metal fluoride glass (TMFG) networks. The glass compositions were chosen in order to vary the initial constituents and check
Autor:
M.C. Marco de Lucas, O. Frezza, Bernard Jacquier, Brigitte Boulard, O. Perrot, J. Mugnier, C. Garapon, Charles Jacoboni
Publikováno v:
Optical Materials. 10:19-27
The optical properties of Nd 3+ doped PZG (PbF 2 –ZnF 2 –GaF 3 ) fluoride glass planar waveguides elaborated by physical vapour deposition (PVD) on CaF 2 substrates have been analysed in comparison with those of the bulk material. The infrared (I
Publikováno v:
Journal of Physics: Condensed Matter
Journal of Physics: Condensed Matter, IOP Publishing, 1997, 9 (31), pp.6719-6736. ⟨10.1088/0953-8984/9/31/022⟩
Journal of Physics: Condensed Matter, IOP Publishing, 1997, 9 (31), pp.6719-6736. ⟨10.1088/0953-8984/9/31/022⟩
High-resolution magic-angle-spinning (MAS) NMR spectroscopy is used to investigate the structural properties of some transition metal fluoride glasses ( - - ) related to the fluorine network. Several glass compositions are investigated in order to va
Publikováno v:
Journal of Non-Crystalline Solids. :137-140
The fabrication of PZG (PbF2–ZnF2–GaF3) fluoride glass channel waveguides grown by vapor phase deposition on heated fluoride substrates is described. The ZBLAN fluorozirconate glass substrate is photomasked, then a wet etching, using ZrOCl2 solut
Publikováno v:
Journal of Solid State Chemistry
Journal of Solid State Chemistry, Elsevier, 1996, 121 (1), pp.149-157. ⟨10.1006/jssc.1996.0022⟩
Journal of Solid State Chemistry, Elsevier, 1996, 121 (1), pp.149-157. ⟨10.1006/jssc.1996.0022⟩
Recrystallization of fluoride glasses in the PbF 2 –ZnF 2 –GaF 3 system (PZG), amorphous GaF 3 , and amorphous PbGaF 5 have been studied by EPR and XRD. Cr 3+ and Fe 3+ are used as EPR probes for PZG glass. Fe 3+ is the only probe used for the am
Publikováno v:
Journal of Non-Crystalline Solids. 184:184-189
Physical vapour deposition has been used in transition metal fluoride glasses (TMFG) systems to prepare fluoride glass films doped with various active ions (3d transition or rare-earth). Active planar waveguides have been realized with PZG doped film
Autor:
A. Remillieux, Bernard Jacquier, J. Mugnier, M.F. Joubert, Charles Jacoboni, O. Perrot, Brigitte Boulard
Publikováno v:
Journal of Non-Crystalline Solids. 184:341-345
The first observation of optical properties of new rare-earth-doped vitreous fluoride waveguides has been recently reported. These vitreous fluoride films have been deposited by a physical vapour deposition technique on fluoride substrates. Several P
Autor:
Driss Benhaddou, L. Guinvarc'h, R. Rimet, Brigitte Boulard, P.C. Montgomery, O. Perrot, Charles Jacoboni
Publikováno v:
Journal of Non-Crystalline Solids. 184:257-262
Fluoride glass waveguides fabricated by vapour phase deposition have been investigated. The refractive indices have been measured using the M-line technique. Birefringence is detected, probably originating from stress developed at the layer-substrate
Publikováno v:
Journal of Non-Crystalline Solids. 161:133-136
The optical properties of Cr3+ ions in a thin film of PZG (31.4PbF236.2ZnF221.8GaF3CdF24.3InF3) fluoride glass have been investigated. In order to analyze the Cr3+ site distributions, detailed time-resolved measurements have been performe
Publikováno v:
Journal of Non-Crystalline Solids. 161:81-85
Fluoride PZG (PbF 2 , ZnF 2 , GaF 3 ) glass layers have been successfully grown on metal, glass, and semiconductor substrates by co-evaporation under vacuum conditions. When doped with a suitably chosen rare earth element, the layer becomes an active