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Chinese Optics Letters, Vol. 17, Issue 6, 061601 (2019)

Abnormal elemental redistribution in oxyfluoride glasses induced by high repetition rate femtosecond laser

Shengzhi Sun1, Song Ye2, Zhenyan Wang1, Juan Song3, Bin Qian4,*, and Jianrong Qiu4,**

Author Affiliations

  • 1Ningbo University of Finance and Economics, Ningbo 315175, China
  • 2School of Materials Science and Engineering, Tongji University, Shanghai 201804, China
  • 3School of Material Science and Engineering, Jiangsu University, Zhenjiang 212013, China
  • 4State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, Zhejiang University, Hangzhou 310027, China

Abstract

We report on the elemental redistribution behavior in oxyfluoride glasses with a high repetition rate near-infrared femtosecond laser. Elemental analysis by an electro-probe microanalyzer demonstrates that the redistributions of Ca2+ and Yb3+ ions change dramatically with pulse energy, which are quite different compared with previous reported results. Confocal fluorescence spectra of Yb3+ ions demonstrate that the luminescence intensity changes obviously with the elemental redistribution. The mechanism of the observed phenomenon is discussed. This observation may have potential applications in the fabrication of micro-optical devices.