碲酸盐与铋玻璃中Ho3+对Er3+ 2.7μm发射的脱敏效应比较
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"碲酸盐和铋玻璃中Ho3 +脱敏Er3 +发射2.7μm的比较研究"
这篇研究论文深入探讨了在碲酸盐和铋玻璃中Ho3+对Er3+能量转移机制的影响，特别是针对2.7微米发射性能的差异。在Er3+/Ho3+共掺杂的这两种玻璃体系中，研究人员发现当添加Ho3+后，碲酸盐玻璃中的Er3+ 2.7微米发射得到了显著增强。这种增强现象与Dexter的能量转移理论相吻合，表明在碲酸盐玻璃中，Er3+:4I13/2能级到Ho3+:5I7能级的能量转移效率高于铋玻璃。
通过上转换和近红外光谱分析，论文揭示了在碲酸盐玻璃中，Er3+:4I13/2和Ho3+:5I6之间的交叉弛豫过程（Er3+:4I13/2+Ho3+:5I6→Er3+:4I15/2+Ho3+:5F5）相对更有效。这一过程有助于减少Er3+:4I13/2能级的粒子数，从而提高了2.7微米发射的效率。这表明，Er3+/Ho3+共掺杂的碲酸盐玻璃在中红外激光应用方面具有很大的潜力，尤其是在通信、成像和医疗等领域。
此外，该研究还可能对材料科学和工程领域的玻璃设计产生深远影响。通过优化Ho3+和Er3+的比例以及玻璃基质的特性，可以进一步提升这些材料的光子学性能。同时，这项工作也为理解离子在玻璃网络中的行为以及如何通过调控掺杂剂来改进光学性能提供了新的见解。
总结来说，这篇研究论文对比了碲酸盐和铋玻璃中Ho3+对Er3+ 2.7微米发射性能的调制效果，强调了碲酸盐玻璃在这方面的优越性，并暗示了这种共掺杂玻璃在中红外技术应用中的广阔前景。通过深入研究此类材料，未来有可能开发出更高性能的中红外激光源和光电设备。
Comparative study of 2.7 μm emission of Ho
3+
desensitized Er
3+
in tellurite and bismuth
glass
GUOYING ZHAO,
1
WENTIAN JIN,
1
YONGZHENG FANG,
1,*
YUBIAO HE,
1
YINGJIE LI,
1
YUFENG LIU,
1
MEISONG LIAO,
2
AND JUN ZOU
2
1
School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai 201418,
China
2
College of Science, Shanghai Institute of Technology, Shanghai 201418, China
*
fyz1003@sina.com
Abstract: Energy transfer mechanisms have been quantitatively studied in Er
3+
/Ho
3+
codoped
tellurite and bismuth glass. Upon an excitation of 980 nm, an enhanced Er
3+
:2.7 μm emission
was observed when Ho
3+
was added to tellurite glass. Using Dexter’s theory, it is clearly
shown that the efficiency of Er
3+
:
4
I
13/2
→ Ho
3+
:
5
I
7
energy transfer is higher in tellurite glass
than in bismuth glass. Based on upconversion and near-infrared spectra, the cross relaxation
Er
3+
:
4
I
13/2
+ Ho
3+
:
5
I
6
→ Er
3+
:
4
I
15/2
+ Ho
3+
:
5
F
5
is comparatively effective in tellurite glass,
where it depletes the population of Er
3+
:
4
I
13/2
level. The excellent spectroscopic characteristics
indicate Er
3+
/Ho
3+
co-doped tellurite glass has potential application for mid-infrared laser.
© 2017 Optical Society of America
OCIS codes: (160.2290) Fiber materials; (160.2750) Glass and other amorphous materials; (160.5690) Rare-earth-
doped materials.
References and links
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3+
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Vol. 7, No. 4 | 1 Apr 2017 | OPTICAL MATERIALS EXPRESS 1147
#283021
https://doi.org/10.1364/OME.7.001147
Journal © 2017
Received 16 Dec 2016; revised 16 Feb 2017; accepted 24 Feb 2017; published 6 Mar 2017
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