Broadening and enhancing 2.7 μm emission spectra in Er/Ho co-doped oxyfluoride germanosilicate glass ceramics by imparting multiple local structures to rare earth ions

Qunhuo Liu; Ying Tian; Wenhua Tang; Feifei Huang; Xufeng Jing; Junjie Zhang; Shiqing Xu

doi:10.1364/PRJ.6.000339

Journals >Photonics Research >Volume 6 >Issue 4 >Page 339 > Article

Photonics Research
Vol. 6, Issue 4, 339 (2018)

Broadening and enhancing 2.7 μm emission spectra in Er/Ho co-doped oxyfluoride germanosilicate glass ceramics by imparting multiple local structures to rare earth ions

Qunhuo Liu¹, Ying Tian^1、*, Wenhua Tang¹, Feifei Huang¹, Xufeng Jing², Junjie Zhang¹, and Shiqing Xu^1、3

Author Affiliations

¹College of Materials Science and Engineering, China Jiliang University, Hangzhou 310018, China

²Institute of Optoelectronic Technology, China Jiliang University, Hangzhou 310018, China

³e-mail: sxucjlu@163.com

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DOI: 10.1364/PRJ.6.000339 Cite this Article Set citation alerts

Qunhuo Liu, Ying Tian, Wenhua Tang, Feifei Huang, Xufeng Jing, Junjie Zhang, Shiqing Xu. Broadening and enhancing 2.7 μm emission spectra in Er/Ho co-doped oxyfluoride germanosilicate glass ceramics by imparting multiple local structures to rare earth ions[J]. Photonics Research, 2018, 6(4): 339 Copy Citation Text

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Abstract

Er/Ho co-doped oxyfluoride germanosilicate glass and glass ceramics are prepared and compared. The results indicate that the glass consists of

{SiO}_{4}

and

{GeO}_{4}

structural units, while the network of the glass ceramics consists of

{SiO}_{4}

{GeO}_{4}

, and

{GeO}_{6}

units together with

{NaYF}_{4}

nanocrystals. The presence of multiple local structures in glass ceramics creates a range of dipole environments, which is beneficial to the broadening of 2.7 μm emission. Two other reasons are attributed to the broadening of 2.7 μm emission in glass ceramics: the energy-level splitting of