Raman spectroscopy is a useful experimental tool to investigate local deformation and structural changes in SiO2-based glasses. Using a semi-classical modelling of Raman spectra in large samples of silica glasses, we show in this paper that shear plastic flow affects the Raman measurement in the upper part of the spectrum. We relate these changes to structural modifications, as well as a detailed analysis of the vibration modes computed in the same frequency range. These results opens the door to in situ monitoring of plastic damage in silica-based structures.
@article{arxiv.1502.00898,
title = {Raman measurement of irreversible shear in SiO$_2$ glass},
author = {Nikita S. Shcheblanov and Boris Mantisi and Paolo Umari and Anne Tanguy},
journal= {arXiv preprint arXiv:1502.00898},
year = {2015}
}