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9 June 2006 Laser microhole drilling using Q-switched radially and tangentially polarized beams
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Proceedings Volume 6053, International Conference on Lasers, Applications, and Technologies 2005: High-Power Lasers and Applications; 605312 (2006) https://doi.org/10.1117/12.660454
Event: International Conference on Lasers, Applications, and Technologies 2005, 2005, St. Petersburg, Russian Federation
Abstract
Laser microhole drilling using radially and tangentially polarized Q-switched laser radiation has been analyzed comparatively. Tangential polarization exhibited a significantly higher drilling speed compared to radial polarization. Light attenuation through interaction with the walls of a microhole was found to be weaker in the case of tangential polarization than in the case of radial polarization, thus leading to the assumption that the observed higher drilling rates utilizing tangential polarization are due to more energy being deposited at the bottom of a microhole. The required radiation has been generated using a Q-switched Nd:YAG laser resonator in a configuration that exploits thermally induced birefringence to render the laser resonator stable only for radial polarization.
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
M. Meier, H. Glur, E. Wyss, Th. Feurer, and V. Romano "Laser microhole drilling using Q-switched radially and tangentially polarized beams", Proc. SPIE 6053, International Conference on Lasers, Applications, and Technologies 2005: High-Power Lasers and Applications, 605312 (9 June 2006); https://doi.org/10.1117/12.660454
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