, Defects in SiO2 and Related Dielectrics: Science and Technology, Defects in SiO 2 and Related Dielectrics: Science and Technology, 2000.

L. Skuja, Optically active oxygen-deficiency-related centers in amorphous silicon dioxide, Journal of Non-Crystalline Solids, vol.239, issue.1-3, pp.16-48, 1998.

G. Pacchioni and G. Iera?o, Ab initiotheory of optical transitions of point defects inSiO2, Physical Review B, vol.57, issue.2, pp.818-832, 1998.

W. H. Zachariasen, THE ATOMIC ARRANGEMENT IN GLASS, Journal of the American Chemical Society, vol.54, issue.10, pp.3841-3851, 1932.

W. Jin, R. K. Kalia, P. Vashishta, and J. P. Rino, Structural transformation in densified silica glass: A molecular-dynamics study, Physical Review B, vol.50, issue.1, pp.118-131, 1994.

W. Primak, Fast-Neutron-Induced Changes in Quartz and Vitreous Silica, Physical Review, vol.110, issue.6, pp.1240-1254, 1958.

R. A. Devine, Macroscopic and microscopic effects of radiation in amorphous SiO2, Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, vol.91, issue.1-4, pp.378-390, 1994.

M. Lancry and B. Poumellec, UV laser processing and multiphoton absorption processes in optical telecommunication fiber materials, Physics Reports, vol.523, issue.4, pp.207-229, 2013.

N. F. Borrelli, C. Smith, D. C. Allan, and T. P. Seward, Densification of fused silica under 193-nm excitation, Journal of the Optical Society of America B, vol.14, issue.7, p.1606, 1997.

B. W. Mcmillen, Y. Bellouard, O. Uteza, R. Clady, and M. Sentis, Quantification of Bulk Densification in Fused Silica Induced by Femtosecond Laser Exposure in the Sub-50 fs Regime, Conference on Lasers and Electro-Optics, pp.2-34, 2016.

B. Boizot, S. Agnello, B. Reynard, R. Boscaino, and G. Petite, Raman spectroscopy study of ?-irradiated silica glass, Journal of Non-Crystalline Solids, vol.325, issue.1-3, pp.22-28, 2003.
URL : https://hal.archives-ouvertes.fr/hal-00341818

T. Gavenda, O. Gedeon, and K. Jurek, Irradiation induced densification and its correlation with three-membered rings in vitreous silica, Journal of Non-Crystalline Solids, vol.425, pp.61-66, 2015.

. Table-ii, Table 2: Density surface models tested.

S. Kapoor, L. Wondraczek, and M. M. Smedskjaer, Pressure-Induced Densification of Oxide Glasses at the Glass Transition, Frontiers in Materials, vol.4, p.1, 2017.

T. Deschamps, A. Kassir-bodon, C. Sonneville, J. Margueritat, C. Martinet et al., Permanent densification of compressed silica glass: a Raman-density calibration curve, Journal of Physics: Condensed Matter, vol.25, issue.2, p.025402, 2012.
URL : https://hal.archives-ouvertes.fr/hal-02108399

A. Cornet, V. Martinez, D. De-ligny, B. Champagnon, and C. Martinet, Relaxation processes of densified silica glass, The Journal of Chemical Physics, vol.146, issue.9, p.094504, 2017.
URL : https://hal.archives-ouvertes.fr/hal-02289265

M. Guerette, M. R. Ackerson, J. Thomas, E. B. Watson, and L. Huang, Thermally induced amorphous to amorphous transition in hot-compressed silica glass, The Journal of Chemical Physics, vol.148, issue.19, p.194501, 2018.