Bergler M, Cvecek K, Werr F, Brehl M, De Ligny D et al. Cooling rate calibration and mapping of ultra-short pulsed laser modifications in fused silica by Raman and Brillouin spectroscopy. Int. J. Extrem. Manuf2, 035001(2020).. DOI: 10.1088/2631-7990/ab9583
引用本文: Bergler M, Cvecek K, Werr F, Brehl M, De Ligny D et al. Cooling rate calibration and mapping of ultra-short pulsed laser modifications in fused silica by Raman and Brillouin spectroscopy. Int. J. Extrem. Manuf2, 035001(2020).. DOI: 10.1088/2631-7990/ab9583
Bergler M, Cvecek K, Werr F, Brehl M, De Ligny D et al. Cooling rate calibration and mapping of ultra-short pulsed laser modifications in fused silica by Raman and Brillouin spectroscopy. Int. J. Extrem. Manuf. 2, 035001(2020).. doi: 10.1088/2631-7990/ab9583
Citation: Bergler M, Cvecek K, Werr F, Brehl M, De Ligny D et al. Cooling rate calibration and mapping of ultra-short pulsed laser modifications in fused silica by Raman and Brillouin spectroscopy. Int. J. Extrem. Manuf. 2, 035001(2020).. doi: 10.1088/2631-7990/ab9583

基于拉曼和布里渊光谱的超短脉冲激光熔融石英改性冷却速率校准与测绘

  • 摘要:

    研究论文 ● 开放获取阅读更多

    过去二十年,超短脉冲(USP)激光技术在玻璃零件表面及内部加工方面的重要性稳定提升,包括切割、烧蚀、焊接和改性等。认识光与物质相互作用过程中的物理过程是提升现有超短脉冲激光玻璃加工工艺和新应用拓展的关键。本文研究工作由Schmidt教授团队(先进超短脉冲激光工艺研究)和de Ligny教授团队(玻璃及其结构的研究和理论拓展)合作完成,旨在确定超短脉冲激光诱导改性过程中玻璃内部和周围的冷却速率和残余应力空间分布。该项研究中,利用激光与玻璃的相互作用致使玻璃网络结构变化与激光诱导改性同步发生,通过非弹性光散射技术(拉曼光谱和布里渊光谱)监测玻璃结构的变化,并通过对大块玻璃材料的校准实验将其与冷却速率和应力相关联。该方法(据作者所知)首次实现局部冷却速率及相应局部残余应力三维分布的高空间分辨率测量。

     

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