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Asymmetric orientational writing in glass with femtosecond laser irradiation

Abstract : 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.
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Submitted on : Thursday, January 9, 2014 - 5:19:01 PM
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Bertrand Poumellec, M. Lancry, R. Desmarchelier, Eveline Hervé, François Brisset, et al.. Asymmetric orientational writing in glass with femtosecond laser irradiation. Optical Materials Express, OSA pub, 2013, 3, pp.1586-1599. ⟨10.1364/OME.3.001586⟩. ⟨hal-00926558⟩



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