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arXiv · 2111.01612

Protecting the Edge: Ultrafast Laser Modified C-shaped Glass Edges

Daniel Flamm·Myriam Kaiser·Marvin Feil·Max Kahmann·Michael Lang·Jonas Kleiner·Tim Hesse
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Abstract

A procedure and optical concept is introduced for ultrashort pulsed laser cleaving of transparent materials with tailored edges in a single pass. The procedure is based on holographically splitting a number of foci along the desired edge geometry including C-shaped edges with local 45{\deg} tangential angles to the surface. Single-pass, full thickness laser modifications are achieved requiring single-side access to the workpiece only without inclining the optical head. After having induced laser modifications with feed rates of 1 m/s actual separation is performed using a selective etching strategy.

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Daniel Flamm, Myriam Kaiser, Marvin Feil, Max Kahmann, Michael Lang, Jonas Kleiner, Tim Hesse. 2021-11-02. Protecting the Edge: Ultrafast Laser Modified C-shaped Glass Edges. https://doi.org/10.2351/7.0000592

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