Structure and Spectral Property of Sc Doped Nd:CaF2 Laser Crystals

doi:10.15541/jim20170542

Journal of Inorganic Materials ›› 2018, Vol. 33 ›› Issue (8): 873-876.DOI: 10.15541/jim20170542

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Structure and Spectral Property of Sc Doped Nd:CaF₂ Laser Crystals

PANG Si-Yuan¹, QIAN Xiao-Bo², WU Qing-Hui², YU Hao², XU Jia-Yue¹, SU Liang-Bi²

1. School of Material Science and Engineering, Shanghai Institute of Technology, Shanghai 201418, China;
2. Synthetic Single Crystal Research Center, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 201899, China

Received:2017-11-15 Revised:2018-01-04 Published:2018-08-28 Online:2018-07-17
About author:PANG Si-Yuan. E-mail: 1094961589@qq.com
Supported by:
National Natural Science Foundation of China (51272264, 91333106)

Abstract

Abstract:

0.5at% Nd, xat% Sc:CaF₂ single crystals (x=0, 2, 5, 8) were fabricated via the temperature gradient technique in this work. The absorption spectra, fluorescence spectra and fluorescence lifetime of 0.5at% Nd, xat% Sc:CaF₂ single crystals were investigated. Both fluorescence intensity and fluorescence lifetime were found to be enhanced with the increase of Sc³⁺ ion doping concentration. In addition, by optimizing the Sc³⁺ content, 0.5at% Nd, 5at% Sc:CaF₂ yielded the largest absorption cross section of 1.42×10^-20 cm². Moreover, a new peak were observed at 796 nm with the Sc³⁺ ion doped in 0.5at% Nd:CaF₂ crystals. Above all, the concentration of Sc³⁺ ion can regulate local structure of Nd³⁺ ion and optimize its crystalline spectral properties.

Key words: Nd:CaF₂ crystal, regulating ion, local structure, spectral property

CLC Number:

PANG Si-Yuan, QIAN Xiao-Bo, WU Qing-Hui, YU Hao, XU Jia-Yue, SU Liang-Bi. Structure and Spectral Property of Sc Doped Nd:CaF₂ Laser Crystals[J]. Journal of Inorganic Materials, 2018, 33(8): 873-876.

Figures/Tables 6

Fig. 1 XRD patterns of 0.5%Nd, x% Sc:CaF2

Fig. 2 Absorption spectra of 0.5at% Nd, xat% Sc:CaF2

Fig. 3 Absorption spectra of 0.5at% Nd, xat% Sc:CaF2

Fig. 4 Fluorescence spectra of 0.5at% Nd, xat% Sc:CaF2

Fig. 5 Fluorescence spectra of0.5at% Nd, xat% Sc:CaF2

Fig. 6 Fluorescence lifetimes of 0.5at% Nd, xat% Sc:CaF2

References 15

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Structure and Spectral Property of Sc Doped Nd:CaF₂ Laser Crystals

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