Abstract

Ultrashort pulsed laser micromachining technology has been acknowledged for the precision fabrication of various transparent and opaque materials both on the surface and in volume. Material marking, ablation, cutting, joining, or executing other specific tasks can be done with less than a micron precision [1]. While temporal pulse properties as well as repetition rate and average power are defined by the laser source the beam shape transformations are left to be explored by a user. The most versatile method to improve laser-micromachining process is to reshape the Gaussian beam to a more exotic one. It was observed that specific beams shapes may improve the process speed and quality with focal zone intensity engineering.

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