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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Houizot, Patrick
University of Rennes
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (40/40 displayed)
- 2024Subcritical crack growth of SiO2-B2O3-Na2O amorphous phase separated glasses
- 2024Does the crystallization of a zinc aluminosilicate glass influence its stress corrosion cracking behavior?
- 2024Crystallization and mechanical properties of a barium titanosilicate glasscitations
- 2024Fracture behavior of brittle particulate composites consisting of a glass matrix and glass or ceramic particles with elastic property mismatchcitations
- 2023Phase Separated SiO2-B2O3-Na2O Glasses: Part I - Structure
- 2023Phase Separated SiO2-B2O3-Na2O Glasses: Part II - Fracture
- 2023Mechanoluminescence of (Eu, Ho)-doped oxynitride glass-ceramics from the BaO-SiO2-Si3N4 chemical systemcitations
- 2022Fracture in SiO2-B2O3-Na2O glasses
- 2021Stress Corrosion Cracking in Amorphous Phase Separated Oxide Glasses: A Holistic Review of Their Structures, Physical, Mechanical and Fracture Propertiescitations
- 2021Effects of Amorphous Phase Separation on SiO2-B2O3-Na2O Glasses Properties
- 2021High refractive index IR lenses based on chalcogenide glasses molded by spark plasma sinteringcitations
- 2020Mechanics and physics of a glass/particles photonic spongecitations
- 2019Healing of cracks by green laser irradiation in a nanogold particles glass matrix compositecitations
- 2017Mechanical model of giant photoexpansion in a chalcogenide glass and the role of photofluiditycitations
- 2016Structure and mechanical properties of copper–lead and copper–zinc borate glassescitations
- 2016Elasticity and viscosity of BaO-TiO2-SiO2 glasses in the 0.9 to 1.2T(g) temperature intervalcitations
- 2015Crystallization, microstructure and mechanical properties of transparent glass-ceramic.
- 2014Toward glasses with better indentation cracking resistancecitations
- 2014Shaping of looped miniaturized chalcogenide fiber sensing heads for mid-infrared sensingcitations
- 2014Shaping of looped miniaturized chalcogenide fiber sensing heads for mid-infrared sensingcitations
- 2013The development of advanced optical fibers for long-wave infrared transmissioncitations
- 2013The development of advanced optical fibers for long-wave infrared transmissioncitations
- 2010Fabrication of low-loss chalcogenide photonic-crystal fi bers by a moulding processcitations
- 2010Elastic properties and surface damage resistance of nitrogen-rich (Ca,Sr)-Si-O-N glassescitations
- 2010Recent advances in very highly nonlinear chalcogenide photonic crystal fibers and their applicationscitations
- 2010Chalcogenide glass hollow core photonic crystal fiberscitations
- 2010Casting method for producing low-loss chalcogenide microstructured optical fiberscitations
- 2009Te-As-Se glass microstructured optical fiber for the middle infraredcitations
- 2009Chalcogenide Microstructured Fibers for Infrared Systems, Elaboration, Modelization, and Characterizationcitations
- 2008Synthesis and characterization of chalcogenide glasses from the system Ga-Ge-Sb-S and preparation of a single-mode fiber at 1.55 μmcitations
- 2008Solid core microstructured optical fibers from chalcogenide glasses for photonic applications
- 2008Infrared Photonic Crystal Fibers from chalcogenide glasses for non linear optical applications
- 2008Small-core chalcogenide microstructured fibers for the infrared.citations
- 2008Experimental investigation of Brillouin and Raman scattering in a 2SG sulfide glass microstructured chalcogenide fiber.citations
- 2007Infrared single mode chalcogenide glass fiber for space.citations
- 2007Infrared single mode chalcogenide glass fiber for space.citations
- 2007Advances in the elaboration of chalcogenide photonic crystal fibers for the mid infraredcitations
- 2007Mid-infrared fiber laser application: Er3+-doped chalcogenide glassescitations
- 2007Selenide glass single mode optical fiber for nonlinear opticscitations
- 2006Infrared transmitting glasses and glass-ceramicscitations
Places of action
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article
High refractive index IR lenses based on chalcogenide glasses molded by spark plasma sintering
Abstract
International audience ; In this work, spark plasma sintering is used to mold non conventional chalcogenide glasses of high refractive index at low temperature (andlt;400°C). This equipment, usually used for sintering refractory materials, is presented as efficient for both densification and high precision molding of IR transparent bulks and lenses of telluride glasses. Thermo-mechanical and optical characteristics of the selected Ge25Se10Te65 glass composition were investigated showing a refractive index of 3,12@10 µm and with however a limited resistance to crystallization. Mechanical milling of raw Ge, Se, Te elements leads to a major amorphous phase with the formation of a small proportion of GeTe crystals. Remaining GeTe crystals induce a fast crystallization rate during the sintering process leading to the opacity of the material. SPS flash moldings were then performed using melt quenched glass powders to produce complex lenses. It has been found that the critical parameter to reach optimal IR transparency is mainly the powder granulometry, which should be superior to 100 µm to prevent from MIE scatterings. The possibility of producing high refractive index infrared lenses has been demonstrated even with unstable glasses against crystallization. © 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement