Intense 2.85 μm mid-infrared emissions in Yb3+/Ho3+ codoped and Yb3+/Er3+/Ho3+ tridoped TBLL fluorotellurite glasses and their energy transfer mechanism

Author(s):  
Chengzhen Liu ◽  
Shaohua Feng ◽  
Xusheng Xiao ◽  
Yantao Xu ◽  
Haitao Guo
2012 ◽  
Vol 39 (10) ◽  
pp. 1006002 ◽  
Author(s):  
徐星辰 Xu Xingchen ◽  
周亚训 Zhou Yaxun ◽  
戴世勋 Dai Shixun ◽  
王训四 Wang Xunsi ◽  
郑世超 Zheng Shichao ◽  
...  

2015 ◽  
Vol 618 ◽  
pp. 666-672 ◽  
Author(s):  
Dandan Yin ◽  
Fengjing Yang ◽  
Libo Wu ◽  
Yaxun Zhou ◽  
Huijie Zhou ◽  
...  

Crystals ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 1024
Author(s):  
Jiayu Liao ◽  
Qiudi Chen ◽  
Xiaochen Niu ◽  
Peixiong Zhang ◽  
Huiyu Tan ◽  
...  

An efficient enhancement of 2.78 μm emission from the transition of Er3+: 4I11/2 → 4I13/2 by Tm3+ introduction in the Er/Tm: PbF2 crystal was grown by the Bridgman technique for the first time. The spectroscopic properties, energy transfer mechanism, and first-principles calculations of as-grown crystals were investigated in detail. The co-doped Tm3+ ion can offer an appropriate sensitization and deactivation effect for Er3+ ion at the same time in PbF2 crystal under the pump of conventional 800 nm laser diodes (LDs). With the introduction of Tm3+ ion into the Er3+: PbF2 crystal, the Er/Tm: PbF2 crystal exhibited an enhancing 2.78 μm mid-infrared (MIR) emission. Furthermore, the cyclic energy transfer mechanism that contains several energy transfer processes and cross-relaxation processes was proposed, which would well achieve the population inversion between the Er3+: 4I11/2 and Er3+: 4I13/2 levels. First-principles calculations were performed to find that good performance originates from the uniform distribution of Er3+ and Tm3+ ions in PbF2 crystal. This work will provide an avenue to design MIR laser materials with good performance.


2017 ◽  
Vol 65 (2) ◽  
pp. 110-120 ◽  
Author(s):  
Zhe Chen ◽  
Jiu-Hui Wu ◽  
A-Dan Ren ◽  
Xin Chen ◽  
Zhen Huang

2021 ◽  
pp. 118082
Author(s):  
Hai Ma ◽  
Xiaodan Wang ◽  
Feifei Chen ◽  
Jiafan Chen ◽  
Xionghui Zeng ◽  
...  

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