Characteristics of laser micromachining of lithium niobate (LiNbO3) and lithium tantalate (LiTaO3) using 10 ps laser pulses at 355 nm wavelength were investigated. The ablation thresholds were determined in dependence on pulse repetition rates and feed rates in comparison with single shot experiments. The single shot ablation threshold for LiNbO3 was determined to 1.7 J/cm² and for LiTaO3 to 3.1 J/cm². Ablation rates as well as surface roughness of the laser ablated materials at different pulse energies were measured. An arithmetical mean deviation of the roughness profile of 130 nm was achieved. Based on these results the potential of laser micromachining of ferroelectric materials with ps laser pulses have been demonstrated by a laser machined ridge waveguide structure.
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ICALEO 2011: 30th International Congress on Laser Materials Processing, Laser Microprocessing and Nanomanufacturing
October 23–27, 2011
Orlando, Florida, USA
ISBN:
978-0-912035-94-9
PROCEEDINGS PAPER
Investigations on microstructuring of ferroelectric materials by picosecond UV laser pulses Available to Purchase
Mareike Stolze;
Mareike Stolze
1
Photonik-Zentrum Kaiserslauternn e.V.
, Kohlenhofstr. 10, D-67663 Kaiserslautern, Germany
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Thomas Herrmann;
Thomas Herrmann
1
Photonik-Zentrum Kaiserslauternn e.V.
, Kohlenhofstr. 10, D-67663 Kaiserslautern, Germany
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Johannes L’huillier
Johannes L’huillier
1
Photonik-Zentrum Kaiserslauternn e.V.
, Kohlenhofstr. 10, D-67663 Kaiserslautern, Germany
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Published Online:
October 01 2011
Citation
Mareike Stolze, Thomas Herrmann, Johannes L’huillier; October 23–27, 2011. "Investigations on microstructuring of ferroelectric materials by picosecond UV laser pulses." Proceedings of the ICALEO 2011: 30th International Congress on Laser Materials Processing, Laser Microprocessing and Nanomanufacturing. ICALEO 2011: 30th International Congress on Laser Materials Processing, Laser Microprocessing and Nanomanufacturing. Orlando, Florida, USA. (pp. pp. 1060-1066). ASME. https://doi.org/10.2351/1.5062181
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