Stress distribution around femtosecond laser affected zones : effect of nanogratings orientation

A. Champion, M. Beresna, P. Kazansky, Y.J. Bellouard

Research output: Contribution to journalArticleAcademicpeer-review

46 Citations (Scopus)
208 Downloads (Pure)

Abstract

Under certain exposure conditions, femtosecond lasers create nanogratings in the bulk of fused silica for which the orientation is governed by the laser polarization. Such nanostructure induces stress that affects optical and chemical properties of the material. Here, we present a method based on optical retardance measurement to quantify the stress around laser affected zones. Further, we demonstrate stress dependence on the nanogratings orientation and we show that the stress within single nanogratings lamellae can locally be as high as several gigapascals. (C) 2013 Optical Society of America
Original languageEnglish
Pages (from-to)24942-24951
JournalOptics Express
Volume21
Issue number21
DOIs
Publication statusPublished - 2013

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