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• Received: Jan. 15, 2019

Accepted: Mar. 28, 2019

Posted: Jun. 17, 2019

Published Online: Jun. 17, 2019

The Author Email: Bin Qian (binqian1984@163.com), Jianrong Qiu (qjr@zju.edu.cn)

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Shengzhi Sun, Song Ye, Zhenyan Wang, Juan Song, Bin Qian, Jianrong Qiu. Abnormal elemental redistribution in oxyfluoride glasses induced by high repetition rate femtosecond laser[J]. Chinese Optics Letters, 2019, 17(6): 061601

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Fig. 1. Experimental scheme of laser processing lines along the $Z$ axis inside the oxyfluoride glass.

Fig. 2. EPMA mapping showing the distribution of (a)–(d) $Ca2+$ and (e)–(h) $Yb3+$ in the glass with different pulse energies. (a), (e) 2 μJ, (b), (f) 2.72 μJ, (c), (g) 3.12 μJ, (d), (h) 3.52 μJ.

Fig. 3. EPMA mapping showing the distribution of $Si4+$ in the glass with different pulse energies. (a) 2 μJ, (b) 2.72 μJ, (c) 3.12 μJ, (d) 3.52 μJ.
Fig. 4. (a), (c) EPMA mapping showing the distribution of $Yb3+$ ions in the glass with different pulse energies. (b) Confocal fluorescence spectrum obtained with a 785 nm laser as the excitation source. (d), (e) Different luminescence intensities at 975 nm as a function of distance. The special points a–l are presented clearly in (a) and (c).