Radiation-induced effects in silica-based glasses: experimental and theoretical results

Sébastien Girard (1) , N. Richard (1) , Y. Ouerdane (2) , G. Origlio (2, 3) , A. Boukenter (2) , L. Martin-Samos (4) , P. Paillet (1) , J.-P. Meunier (2) , Marco Cannas (3) , R. Boscaino (3)

1 DCRE CEA - Département de Conception et Réalisation des Experimentations, CEA-DIF
2 LHC - Laboratoire Hubert Curien
3 Università degli studi di Palermo - University of Palermo
4 Dipartimento di Fisica

We present our methodology to study the radiation- induced effects in silica-based glasses. Our approach is based on the conjoint development of canonical samples of preforms and optical fibers and ab initio tools. The composition of the experiment samples corresponds to those of the glass reproduced with the large supercells used for our ab initio calculations. In this abstract, we give preliminary results concerning the role of Germanium in the radiation-sensitivity of silica-based glasses.

Mots clés: radiation effects; optical fibers; germanium; point defects; ab initio simulations

Domaines: Optique [physics.optics]

Sébastien Girard, N. Richard, Y. Ouerdane, G. Origlio, A. Boukenter, et al.. Radiation-induced effects in silica-based glasses: experimental and theoretical results. SiO2-2008 7th symposium on Advanced Dielectrics and Related Devices, Jun 2008, Saint-etienne, France. pp.81-82. ⟨ujm-00297870⟩