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14 May 2008 High speed high precision ablation from ms to fs
Reinhart Poprawe, Arnold Gillner, Dieter Hoffmann, Jens Gottmann, Welf Wawers, Wolfgang Schulz
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Proceedings Volume 7005, High-Power Laser Ablation VII; 700502 (2008) https://doi.org/10.1117/12.785225
Event: High-Power Laser Ablation 2008, 2008, Taos, New Mexico, United States
Abstract
In recent years new generations of precision lasers have been demonstrated and are increasingly available on an industrial level. For example high beam quality and diffraction limited Fiber lasers, Slab lasers, Disk lasers and still Rod lasers are used very successfully. This paper focuses on - ns and μs drilling of shaped holes by helical drilling1 - drilling of extreme aspect ratios in dielectrics/glass by ns-slab lasers2 - nm-size periodic structuring of polymers by interferometric approaches - ablation by ns- and ps-pulses for metal moulds - generation of waveguide structures in glass by fs-pulses.3 On the laboratory scale a next generation of diffraction limited short pulse lasers is at the horizon.4 In particular, ps-lasers at multi-hundred watts of average power with repetition rates of several MHz,2 fs-lasers at 400W2 average power and green, frequency doubled lasers at 200W are under construction. At the short end of pulses, attosecond lasers have been demonstrated and themselves shall open a new domain of interaction of light and matter5.
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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Reinhart Poprawe, Arnold Gillner, Dieter Hoffmann, Jens Gottmann, Welf Wawers, and Wolfgang Schulz "High speed high precision ablation from ms to fs", Proc. SPIE 7005, High-Power Laser Ablation VII, 700502 (14 May 2008); https://doi.org/10.1117/12.785225
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KEYWORDS
Neodymium
Laser ablation
Picosecond phenomena
Laser drilling
Pulsed laser operation
Radium
Diffraction
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