%0 Conference Paper
%F Oral 
%T Spectroscopy as a tool for local density measurement in vitreous silica
%+ Laboratoire Charles Coulomb (L2C)
%A Weigel, Coralie
%A Foret, Marie
%A Hehlen, Bernard
%A Ruffle, Benoit
%< avec comité de lecture
%Z L2C:18-173
%B Internat. Conf. on the Phys. of Non-Cryst. Solids & 14th Eur. Soc. of Glass Conf. (PNCS-ESG 2018)
%C St Malo, France
%8 2018-07-10
%D 2018
%Z Physics [physics]/Condensed Matter [cond-mat]/Other [cond-mat.other]
%Z Physics [physics]/Mechanics [physics]/Vibrations [physics.class-ph]
%Z Engineering Sciences [physics]/Mechanics [physics.med-ph]/Vibrations [physics.class-ph]Conference papers
%X The paper will discuss the possibility for light spectroscopies, e.g. Brillouin Light Scat- tering or Raman Scattering, to locally monitor the densification of amorphous silica. It is indeed well-known that silica significantly densifies under high stresses, either elastically as for example during a high-pressure experiment in a diamond-anvil cell below about 10 GPa or plastically above that limit. Further, this elastic limit strongly depends on the temperature. Irradiation-induced density changes are also observed using ultra-short laser pulses, neutrons or other particles. All these different routes lead to substantial structural modifications which in turn alter the response of silica to light spectroscopy in a complex manner.
%G English
%L hal-01908978
%U https://hal.science/hal-01908978
%~ CNRS
%~ L2C
%~ MIPS
%~ UNIV-MONTPELLIER
%~ UM-2015-2021