Asymmetric orientational writing dependence on polarization and direction in glass with femtosecond laser irradiationBertrand Poumellec, Matthieu Lancry, Chaxing Fan, Rudy Desmarchelier, Huidan Zeng, Bernard Bouguignon and Guorong ChenMATEC Web of Conferences, 8 (2013) 04003DOI: https://doi.org/10.1051/matecconf/20130804003