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首页> 外文期刊>Applied Surface Science >Debris of potassium-magnesium silicate glass generated by femtosecond laser-induced ablation in air: An analysis by near edge X-ray absorption spectroscopy, micro Raman and energy dispersive X-ray spectroscopy
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Debris of potassium-magnesium silicate glass generated by femtosecond laser-induced ablation in air: An analysis by near edge X-ray absorption spectroscopy, micro Raman and energy dispersive X-ray spectroscopy

机译：飞秒激光在空气中烧蚀产生的钾镁硅酸盐玻璃碎片：近边缘X射线吸收光谱法，显微拉曼光谱和能量色散X射线光谱法的分析

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摘要

The redeposited material (debris) resulting from ablation of a potassium-magnesium silicate glass upon scanning femtosecond laser pulse irradiation (130 fs, 800 nm) in air environment is investigated by means of three complementary surface analytical methods. Changes in the electronic band structure of the glass constituent Magnesium (Mg) were identified by X-ray Absorption Near Edge Structure spectroscopy (XANES) using synchrotron radiation. An up-shift of ≈0.8 eV of a specific Magnesium K-edge absorption peak in the spectrum of the redeposited material along with a significant change in its leading edge position was detected. In contrast, the surface left after laser ablation exhibits a downshift of the peak position by ≈0.9eV. Both observations may be related to a change of the Mg coordinative state of the laser modified/redeposited glass material. The presence of carbon in the debris is revealed by micro Raman spectroscopy (μ-RS) and was confirmed by energy dispersive X-ray spectroscopy (EDX). These observations are attributed to structural changes and chemical reactions taking place during the ablation process.
机译：通过三种互补表面分析方法，研究了在空气环境中扫描飞秒激光脉冲辐照（130 fs，800 nm）时，钾镁硅酸盐玻璃烧蚀产生的再沉积材料（碎片）。通过使用同步加速器辐射的X射线吸收近边缘结构光谱（XANES）来确定玻璃成分镁（Mg）的电子能带结构的变化。在重新沉积的材料的光谱中，检测到特定的镁K边缘吸收峰的≈0.8eV的上移以及其前边缘位置的显着变化。相反，激光烧蚀后留下的表面表现出峰值位置的下移≈0.9eV。两种观察都可能与激光改性/再沉积玻璃材料的Mg配位态的变化有关。显微拉曼光谱（μ-RS）揭示了碎片中的碳，并通过能量色散X射线光谱（EDX）证实了碳的存在。这些观察结果归因于在消融过程中发生的结构变化和化学反应。

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  • 来源
    《Applied Surface Science》 |2014年第30期|286-290|共5页
  • 作者

    M. Grehn; T. Seuthe; F. Reinhardt; M. Hoefner; N. Griga; M. Eberstein; J. Bonse;

  • 作者单位

    Technische Universitaet Berlin, Institut fuer Optik und Atomare Physik, Strasse des 17. Juni 135, 10623 Berlin, Germany,Bruker Nano GmbH, Am Studio 2D, 12489 Berlin, Germany;

    Fraunhofer-Institut fuer Keramische Technologien und Systeme (IKTS), Winterbergstrasse 28, 01277 Dresden, Germany;

    Physikalisch-Technische Bundesanstalt (PTB), Albert-Einstein-Strasse 15, 12489 Berlin, Germany;

    Technische Universitaet Berlin, Institut fuer Optik und Atomare Physik, Strasse des 17. Juni 135, 10623 Berlin, Germany;

    Technische Universitaet Berlin, Institut fuer Optik und Atomare Physik, Strasse des 17. Juni 135, 10623 Berlin, Germany;

    Fraunhofer-Institut fuer Keramische Technologien und Systeme (IKTS), Winterbergstrasse 28, 01277 Dresden, Germany;

    BAM Bundesanstalt fuer Materialforschung und -pruefung, Unter den Eichen 87, 12205 Berlin, Germany;

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

    Femtosecond laser ablation; Potassium-magnesium silicate glass; Debris; XANES; EDX; Raman spectroscopy;

    机译：飞秒激光烧蚀;钾镁硅酸盐玻璃;碎片XANES;EDX;拉曼光谱;

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