Improved laser glass cutting by spatio-temporal control of energy deposition using bursts of femtosecond pulses
Autor: | Rainer Kling, Eric Mottay, O. Dematteo Caulier, Clemens Hönninger, B. Chimier, R. Beuton, Stefan Skupin, Guillaume Duchateau, John Lopez, Konstantin Mishchik, Bruno Chassagne |
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Přispěvatelé: | Amplitude Systèmes, Centre d'Etudes Lasers Intenses et Applications (CELIA), Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Bordeaux (UB), Institut Lumière Matière [Villeurbanne] (ILM), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), ALPhANOV, alphanov, Université de Bordeaux (UB)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS) |
Jazyk: | angličtina |
Rok vydání: | 2017 |
Předmět: |
[PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics]
Materials science [PHYS.PHYS.PHYS-ATOM-PH]Physics [physics]/Physics [physics]/Atomic Physics [physics.atom-ph] business.industry Physics::Optics 02 engineering and technology Plasma 021001 nanoscience & nanotechnology Laser 01 natural sciences Atomic and Molecular Physics and Optics law.invention 010309 optics Optics Volume (thermodynamics) law [PHYS.PHYS.PHYS-PLASM-PH]Physics [physics]/Physics [physics]/Plasma Physics [physics.plasm-ph] 0103 physical sciences Femtosecond Deposition (phase transition) 0210 nano-technology Pulse energy business Beam (structure) Energy (signal processing) |
Zdroj: | Optics Express Optics Express, Optical Society of America-OSA Publishing, 2017, 25 (26), ⟨10.1364/OE.25.033271⟩ Optics Express, 2017, 25 (26), ⟨10.1364/OE.25.033271⟩ |
ISSN: | 1094-4087 |
DOI: | 10.1364/OE.25.033271⟩ |
Popis: | International audience; We demonstrate the advantage of combining non-diffractive beam shapes and femtosecond bursts for volume laser processing of transparent materials. By redistribution of the single laser pulse energy into several sub-pulses with 25 ns time delay, the energy deposition in the material can be enhanced significantly. Our combined experimental and theoretical analysis shows that in burst-mode detrimental defocusing by the laser generated plasma is reduced, and the non-diffractive beam shape prevails. At the same time, heat accumulation during the interaction with the burst leads to temperatures high enough to induce material melting and even in-volume cracks. In an exemplary case study, we demonstrate that the formation of these cracks can be controlled to allow high-speed and high-quality glass cutting. |
Databáze: | OpenAIRE |
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