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Opt Express. 2010 Oct 11;18(21):22305-13. doi: 10.1364/OE.18.022305.

Microdrilling in steel using ultrashort pulsed laser beams with radial and azimuthal polarization.

Author information

1
Institut für Strahlwerkzeuge, University of Stuttgart, Pfaffenwaldring 43, D-70569 Stuttgart, Germany.

Abstract

A linear to radial and/or azimuthal polarization converter (LRAC) has been inserted into the beam delivery of a micromachining station equipped with a picosecond laser system. Percussion drilling and helical drilling in steel have been performed using radially as well as azimuthally polarized infrared radiation at 1030 nm. The presented machining results are discussed on the basis of numerical simulations of the polarization-dependent beam propagation inside the fabricated capillaries.

PMID:
20941131
DOI:
10.1364/OE.18.022305

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