Asymmetric orientational writing in glass with femtosecond laser irradiation

Bertrand Poumellec (1) , M. Lancry (1) , R. Desmarchelier (1) , Eveline Hervé (2, 3) , François Brisset (1) , J.C. Poulin (1)

1 ICMMO - Institut de Chimie Moléculaire et des Matériaux d'Orsay
2 LISV - Laboratoire d'Ingénierie des Systèmes de Versailles
3 CDM - Centre des Matériaux

We review the question on the origin of the differences observed on various properties when we scan the femtosecond laser beam in an isotropic media (i.e. a glass) in two orientations of a given direction. Publications on refractive index changes, birefringence, nanogratings, stress, bubbles formation and on quill writing effects are analyzed. A new interpretation based on space-charge built from ponderomotive force and stored in the dielectric inducing an asymmetric stress field is proposed.

Domaines: Sciences de l'ingénieur [physics]; Matériaux

Bertrand Poumellec, M. Lancry, R. Desmarchelier, Eveline Hervé, François Brisset, et al.. Asymmetric orientational writing in glass with femtosecond laser irradiation. Optical Materials Express, 2013, 3, pp.1586-1599. ⟨10.1364/OME.3.001586⟩. ⟨hal-00926558⟩