Interference and Diffraction: Wave Nature of Light - diffraction

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Balage P, Guilberteau T, Lafargue M, Bonamis G, Hönninger C, Lopez J, Manek-Hönninger I. Bessel Beam Dielectrics Cutting with Femtosecond Laser in GHz-Burst Mode. Micromachines. 2023; 14(9):1650. https://doi.org/10.3390/mi14091650

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Abstract: We report, for the first time to the best of our knowledge, Bessel beam dielectrics cutting with a femtosecond laser in GHz-burst mode. The non-diffractive beam shaping is based on the use of an axicon and allows for cutting glasses up to 1 mm thickness with an excellent cutting quality. Moreover, we present a comparison of the cutting results with the state-of-the-art method, consisting of short MHz-bursts of femtosecond pulses. We further illustrate the influence of the laser beam parameters such as the burst energy and the pitch between consecutive Bessel beams on the machining quality of the cutting plane and provide process windows for both regimes. Keywords: Bessel beam; GHz-burst mode; laser processing; dielectrics; cutting

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Balage, P.; Guilberteau, T.; Lafargue, M.; Bonamis, G.; Hönninger, C.; Lopez, J.; Manek-Hönninger, I. Bessel Beam Dielectrics Cutting with Femtosecond Laser in GHz-Burst Mode. Micromachines 2023, 14, 1650. https://doi.org/10.3390/mi14091650

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Balage, Pierre, Théo Guilberteau, Manon Lafargue, Guillaume Bonamis, Clemens Hönninger, John Lopez, and Inka Manek-Hönninger. 2023. "Bessel Beam Dielectrics Cutting with Femtosecond Laser in GHz-Burst Mode" Micromachines 14, no. 9: 1650. https://doi.org/10.3390/mi14091650

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