6 March 2014 High resolution multiphoton ablation with negligible thermal effects in transparent materials using Q-switched microchip lasers with 300 picosecond pulses at 532 nm
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Abstract
Self-Q-switched microchip lasers are attractive alternative to femtosecond lasers for micromachining in transparent materials. They can easily reach pulse peak powers needed to trigger ablation in all materials, including diamond, ceramics, plastics, and glasses. In addition, they are low cost with compact and rugged design. In this work, we report on using microchip lasers for micro-engraving different types of transparent materials. Micro-size marking is demonstrated on the surface of borosilicate glass. Microfluidic channels are engraved on BK-7 glass microchips with ion-doped waveguides. Arrays of dense micro-channels are fabricated at the surface of thermoplastics with a zone affected by thermal effects limited to the micron range.
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Taghrid Mhalla, Patrice L. Baldeck, "High resolution multiphoton ablation with negligible thermal effects in transparent materials using Q-switched microchip lasers with 300 picosecond pulses at 532 nm", Proc. SPIE 8968, Laser-based Micro- and Nanoprocessing VIII, 896804 (6 March 2014); doi: 10.1117/12.2039422; https://doi.org/10.1117/12.2039422
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