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Femtosecond fiber laser welding of PMMA

机译：飞秒激光焊接PMMA

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摘要

Femtosecond-pulsed laser welding of transparent materials on a micrometer scale is a versatile tool for the fabrication and assembly of electronic, electromechanical, and especially biomedical micro-devices. In this paper, we report on microwelding of two transparent layers of polymethyl methacrylate (PMMA) with femtosecond laser pulses at 1030 nm in the MHz regime. We aim at exploiting localized heat accumulation to weld the two layers without any preprocessing of the sample and any intermediate absorbing media, by focusing fs-laser pulses at the interface. The modifications produced by the focused laser beam into the bulk material have been firstly investigated depending on the laser process parameters aiming to produce continuous melting. Results have been evaluated based on heat accumulation models. Finally, fs-laser welding of PMMA samples have been successfully demonstrated and tested by leakage tests for application in direct laser assembly of microfluidic devices.
机译：飞秒脉冲的微米级透明材料激光焊接是一种用于制造和组装电子，机电，尤其是生物医学微型设备的多功能工具。在本文中，我们报告了在兆赫兹制程中用1030 nm的飞秒激光脉冲对两个透明的聚甲基丙烯酸甲酯（PMMA）透明层进行的微焊接。我们的目标是通过将fs激光脉冲聚焦在界面上，从而在不进行任何样品预处理和任何中间吸收介质的情况下，利用局部蓄热来焊接两层。首先，根据旨在产生连续熔化的激光工艺参数，已经研究了聚焦激光束对块状材料产生的变形。根据蓄热模型评估了结果。最后，PMMA样品的fs激光焊接已成功通过泄漏测试证明并通过测试，可用于微流控设备的直接激光组装。

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  • 来源
    《Laser-based micro- and nanoprocessing IX》|2015年|935106.1-935106.9|共9页
  • 会议地点 San Francisco CA(US)
  • 作者

    Annalisa Volpe; Francesca Di Niso; Caterina Gaudiuso; Andrea De Rosa; Rebeca Martinez Vazquez; Antonio Ancona; Pietro Mario Lugara; Roberto Osellame;

  • 作者单位

    Institute for photonics and nanotechnologies (IFN)-CNR U.O.S. Bari, via Amendola 173, 70126 Bari, Italy,Universita degli Studi di Bari, Dipartimento Interateneo di Fisica, via Amendola 173, 70126 Bari, Italy;

    Institute for photonics and nanotechnologies (IFN)-CNR U.O.S. Bari, via Amendola 173, 70126 Bari, Italy,Universita degli Studi di Bari, Dipartimento Interateneo di Fisica, via Amendola 173, 70126 Bari, Italy;

    Institute for photonics and nanotechnologies (IFN)-CNR U.O.S. Bari, via Amendola 173, 70126 Bari, Italy,Universita degli Studi di Bari, Dipartimento Interateneo di Fisica, via Amendola 173, 70126 Bari, Italy;

    Institute for photonics and nanotechnologies (IFN)-CNR, Piazza Leonardo da Vinci 32, 20133 Milan, Italy;

    Institute for photonics and nanotechnologies (IFN)-CNR, Piazza Leonardo da Vinci 32, 20133 Milan, Italy;

    Institute for photonics and nanotechnologies (IFN)-CNR U.O.S. Bari, via Amendola 173, 70126 Bari, Italy;

    Institute for photonics and nanotechnologies (IFN)-CNR U.O.S. Bari, via Amendola 173, 70126 Bari, Italy,Universita degli Studi di Bari, Dipartimento Interateneo di Fisica, via Amendola 173, 70126 Bari, Italy;

    Institute for photonics and nanotechnologies (IFN)-CNR, Piazza Leonardo da Vinci 32, 20133 Milan, Italy;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Femtosecond laser; fiber laser; transparent material; welding; sealing;

    机译：飞秒激光；光纤激光器透明材料焊接;密封;

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