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Femtosecond and picosecond laser drilling of metals at high repetition rates and average powers
Abstract
The influence of pulse duration on the laser drilling of metals at repetition rates of up to 1 MHz and average powers of up to 70 W has been experimentally investigated using an ytterbium-doped-fiber chirped-pulse amplification system with pulses from 800 fs to 19 ps. At a few hundred kilohertz particle shielding causes an increase in the number of pulses for breakthrough, depending on the pulse energy and duration. At higher repetition rates, the heat accumulation effect overbalances particle shielding, but significant melt ejection affects the hole quality. Using femtosecond pulses, heat accumulation starts at higher repetition rates, and the ablation efficiency is higher compared with picosecond pulses.
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In laser ablation of metal targets in air, material removal efficiency increases as the laser pulse width is shorter.
“For example, experiments on the laser ablation of metal targets in air showed that material removal efficiency is increased as the employed laser pulse width is shorter, 116,117 due to the reduced thermal interaction and more efficient use of the energy for material removal process.114,118,119”
From Green nanoparticle synthesis at scale: a perspective on overcoming the limits of pulsed laser ablation in liquids for high-throughput production (2023) · cites this paper as [116]
Citations
Cites
Femtosecond, picosecond and nanosecond laser ablation of solids
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Khairani, I. Y., Mínguez-Vega, G., Doñate-Buendía, C., & Gökce, B. (2023) · Physical Chemistry Chemical Physics · doi:10.1039/d3cp01214j · Cited by 130
Metadata
- Authors
- Ancona, A., Döring, S., Jauregui, C., Röser, F., Limpert, J., Nolte, S., & Tünnermann, A.
- Affiliations
- Friedrich Schiller University Jena (DE)
- Venue
- Optics Letters
- Publisher
- Optica Publishing Group
- Published
- 2009-10-23
- Volume
- 34
- Issue
- 21
- Pages
- 3304
- ISSN
- 0146-9592 (ISSN-L)
- 1539-4794
- OpenAlex
- W2097175498
- Cited by
- 222
- References
- 1
- Citations by year
- 2026: 9 · 2025: 13 · 2024: 12 · 2023: 12 · 2022: 9 · 2021: 20 · 2020: 14 · 2019: 20 · 2018: 17 · 2017: 10 · 2016: 12 · 2015: 18 · 2014: 16 · 2013: 16 · 2012: 8
- FWCI
- 8.09
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Optics Letters (publishedVersion)
- PubMed (publishedVersion)
- Publikationsdatenbank der Fraunhofer-Gesellschaft (Fraunhofer-Gesellschaft) (submittedVersion)
- Fraunhofer-Publica (Fraunhofer-Gesellschaft) (submittedVersion)
- CINECA IRIS Institutional Research Information System (University of Bari Aldo Moro) (submittedVersion)
- Funders
- German BMBF (13N8579)
- Apulia Region (DM01)
- Topics
- Physical Sciences › Engineering › Industrial and Manufacturing Engineering › Laser Material Processing Techniques
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Laser-Matter Interactions and Applications
- Physical Sciences › Engineering › Industrial and Manufacturing Engineering › Advanced Machining and Optimization Techniques
- Keywords
- laser drilling, metals, femtosecond pulses, picosecond pulses, pulse duration, high repetition rate, high average power, heat accumulation, melt ejection, hole quality, ablation efficiency, ytterbium-doped fiber, chirped pulse amplification
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