Devitrification of ultrafast laser plasma produced metastable glass layer

SCRIPTA MATERIALIA

卷:131

Article

Chandrappan, Jayakrishnan¹  Khetan, Vishal²  Ward, Michael³  Murray, Matthew¹  Jose, Gin¹ 

[1] Univ Leeds, Sch Chem & Proc Engn, Leeds LS2 9JT, W Yorkshire, England

[2] Univ Leeds, Sch Mech Engn, Leeds LS2 9JT, W Yorkshire, England

[3] Univ Leeds, Leeds Electron Microscopy & Spect Ctr, Leeds LS2 9JT, W Yorkshire, England

关键词: Erbium doped silicate;    Ultrafast laser;    Optical materials;    Optical amplifiers;   

DOI  :  10.1016/j.scriptamat.2016.12.028

来源: Elsevier

【 摘 要 】

Erbium-doped tellurite modified silica (EDTS) is a newly formulated silicate glass that has the potential to realize on-chip optical amplifiers. The devitrification process of EDTS layer on host silica glass has been studied in the temperature range 300 degrees C-1000 degrees C. In-situ high-temperature X-ray diffraction, selective area electron diffraction and high-resolution transmission electron microscopy revealed the amorphous phase of EDTS as-fabricated up to 600 degrees C and rapid irreversible crystalline phase developments above 600 degrees C, contrasting the host silica. Distinct structural evolutions of EDTS with the variation in temperature were observed, including a complete evaporation of TeO2 at 800 degrees C from the matrix. (C) 2017 The Authors. Published by Elsevier Ltd on behalf of Acta Materialia Inc.

【 授权许可】

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