High-quality Tailored-edge Cleaving Using Aberration-corrected Bessel-like Beams

TL;DR

This paper introduces a novel laser cutting method using aberration-corrected Bessel-like beams and digital holography to achieve high-quality beveled edges in glass, improving precision and surface quality.

Contribution

It presents a new technique combining aberration correction and digital holography for precise laser glass cutting with bevels, enhancing edge quality.

Findings

Successful fabrication of high-quality beveled edges in glass

Effective aberration pre-compensation using digital holography

Validation through pump-probe microscopy

Abstract

We report on the usage of ultrashort laser pulses in form of aberration-corrected Bessel-like beams for laser cutting of glass with bevels. Our approach foresees to incline the material's entrance surface with respect to the processing optics. The detailed analysis of phase distortions caused by the beam transition through the tilted glass surface allows to pre-compensate occurring aberrations using digital holography. We verify theoretical considerations by means of pump-probe microscopy and present high-quality edges in non-strengthened silicate glass.