Journal
OPTICS EXPRESS
Volume 18, Issue 21, Pages 22305-22313Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.18.022305
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Funding
- Baden-Wurttemberg Stiftung
- Deutsche Forschungsgemeinschaft (DFG) [GR3172/7-1]
- German Federal Ministry for Education and Research (BMBF) [13N8583]
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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. (C) 2010 Optical Society of America
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