Journal ArticleDOI
Pulse width and energy influence on laser micromachining of metals in a range of 100 fs to 5 ps
R. Le Harzic,R. Le Harzic,D. Breitling,M. Weikert,S. Sommer,Christian Föhl,Stéphane Valette,Christophe Donnet,Eric Audouard,Friedrich Dausinger +9 more
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In this article, the authors studied the effect of laser pulse durations on thermal ablation thresholds and penetration depths for steel, Cu and Al in micromachining of laser pulses.About:
This article is published in Applied Surface Science.The article was published on 2005-08-15. It has received 184 citations till now. The article focuses on the topics: Pulse duration & Penetration depth.read more
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Journal ArticleDOI
A review of ultrafast laser materials micromachining
TL;DR: In this paper, a brief review is given regarding ultrafast laser micromachining of materials and some general experimental observations are first provided to show the characteristics of ultrafast LMMM.
Posted Content
Hydrodynamic simulations of metal ablation by femtosecond laser irradiation
TL;DR: In this article, the authors compared the measured removal depth with 1D hydrodynamic simulations using the standard "two-temperature model" and found that a good agreement between experimental and numerical matter ablation rates shows the importance of including solid-to-vapor evolution of the metal in the current modeling of the laser matter interaction.
Journal ArticleDOI
High throughput diffractive multi-beam femtosecond laser processing using a spatial light modulator
Zheng Kuang,Walter Perrie,Jonathan Leach,Martin Sharp,Stuart Edwardson,Miles J. Padgett,Geoff Dearden,Ken Watkins +7 more
TL;DR: In this article, high throughput femtosecond laser processing is demonstrated by creating multiple beams using a spatial light modulator (SLM), which can be modulated in real time by computer generated holograms (CGHs).
Journal ArticleDOI
Ultra-short pulse laser ablation of copper, silver and tungsten: experimental data and two-temperature model simulations
TL;DR: In this paper, experimental results of femtosecond laser ablation of the metals copper, silver and tungsten are compared to simulations based on the two-temperature model, and the dependence of the threshold fluence and melting depth on pulse duration is investigated.
Proceedings ArticleDOI
Optimization of the volume ablation rate for metals at different laser pulse-durations from ps to fs
TL;DR: In this paper, the authors show that the maximum ablation rate can be increased by a factor of 1.5 to 2 when the pulse duration is reduced from 10 ps down to 500 fs.
References
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Journal ArticleDOI
Femtosecond, picosecond and nanosecond laser ablation of solids
TL;DR: Theoretical models and qualitative explanations of experimental results are presented in this paper for femtosecond laser ablation of solid targets by 0.2-5000 ps Ti: Sapphire laser pulses.
Journal ArticleDOI
Ablation of metals by ultrashort laser pulses
Stefan Nolte,Carsten Momma,H. Jacobs,Andreas Tünnermann,Boris N. Chichkov,B. Wellegehausen,Herbert Welling +6 more
TL;DR: In this paper, the authors studied the ablation of metal targets by Ti:sapphire laser radiation and showed that the intensity depends logarithmically on the laser fluence.
Journal ArticleDOI
Short-pulse laser ablation of solid targets
Carsten Momma,Boris N. Chichkov,Stefan Nolte,Ferdinand von Alvensleben,Andreas Tünnermann,Herbert Welling,B. Wellegehausen +6 more
TL;DR: In this article, the authors studied the effect of sub-picosecond laser radiation on the energy and pulse duration of solid targets irradiated by Ti:sapphire laser radiation in the range of 10 9 − 5 × 10 16 W cm 2.
Journal ArticleDOI
Sub-picosecond UV laser ablation of metals
TL;DR: In this paper, a comparison of the morphology of ablation sites after nanosecond and sub-picosecond ablation shows unequivocally the advantages of short-pulse laser ablation for high-precision patterning of thermally good conducting materials in micron-scale dimensions.
Journal ArticleDOI
Thermal response of metals to ultrashort-pulse laser excitation.
TL;DR: In this paper, the authors report measurements of optical damage to molybdenum and copper with an ultrashort laser pulse and show that damage caused by pulses have a duration that can be understood only with a two-temperature model of metals.