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1.
Vers une connaissance microscopique de la structure de verres de phosphate P2O5
Nicolas Richard, Luigi Giacomazzi, Nikita S. Shcheblanov, Layla Martin-Samos, Nadege Ollier, 2020, popular article

Abstract: Les propriétés d’amplification de la lumière des ions terres rares permettent en les incluant comme dopants dans le cœur des fibres optiques d’obtenir des sources laser et des amplificateurs de lumière compacts. Pour réduire la tendance à l’agrégation des terres rares qui diminuent leurs propriétés amplificatrices, le phosphore est employé comme co-dopant dans ces fibres. Cet article montre comment les méthodes de simulation à l’échelle atomique peuvent aider a' l'optimisation de ce co-dopage en contribuant a' une meilleure comprehension de la structure des verres phosphates [1] et des défauts qui leur sont liés [2]. Au CEA-DAM, ces resultats serviront aussi dans le cadre d'etudes sur le developpement de fibres optiques pour des mesures de dosimetrie radiative.
Keywords: glasses, P2O5, point defects, ab-initio
Published in RUNG: 18.09.2020; Views: 2704; Downloads: 0
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2.
Radiation Effects on Optical Fibers and Fiber-Based Sensors
Sylvain Girard, A. Boukenter, Youcef Ouerdane, Nicolas Richard, Philippe Paillet, Layla Martin-Samos, Luigi Giacomazzi, Claude Marcandella, 2015, independent scientific component part or a chapter in a monograph

Keywords: Optical Fibers, radiation-induced point defects, dosimetry, ab-initio
Published in RUNG: 24.10.2018; Views: 3530; Downloads: 0
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3.
Vibrational spectra of vitreous SiO2 and vitreous GeO2 from first principles
Luigi Giacomazzi, Alfredo Pasquarello, 2007, original scientific article

Keywords: SiO2, GeO2, glasses, ab-initio, vibrational spectra, Raman
Published in RUNG: 16.10.2018; Views: 3325; Downloads: 0
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4.
Vibrational properties of vitreous GeSe2 with the Becke–Lee–Yang–Parr density functional
Luigi Giacomazzi, Carlo Massobrio, Alfredo Pasquarello, 2011, original scientific article

Keywords: GeSe2, glass, vibrational spectra, BLYP, Raman, first-principles, DFT, ab-initio
Published in RUNG: 15.10.2018; Views: 3139; Downloads: 0
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5.
Dislocation properties of coesite from an ab-initio parametrized interatomic potential
Luigi Giacomazzi, Philippe Carrez, Sandro Scandolo, Patrique Cordier, 2011, original scientific article

Keywords: coesite, ab-initio, dislocations, silica
Published in RUNG: 15.10.2018; Views: 2931; Downloads: 0
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6.
Gypsum under pressure: A first-principles study
Luigi Giacomazzi, Sandro Scandolo, 2010, original scientific article

Keywords: Gypsum, Hydrous minerals, ab initio, high-pressure phase
Published in RUNG: 15.10.2018; Views: 3011; Downloads: 0
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