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新型中红外激光晶体Er3+/Ho3+/Eu3+∶PbF2的生长和性能
增强出版Growth and Properties of Novel Mid-infrared Laser Crystal Er3+ /Ho3+/Eu3+∶PbF2
- 发光学报 2021年42卷第12期 页码：1852-1862
- 作者机构：
1.广东省晶体与激光技术工程研究中心，广东 广州 510632
2.暨南大学理工学院 光电工程系，广东 广州 510632
- 作者简介：
[ "廖家裕(1996-)，女，广东广州人，硕士研究生，2019年于广州大学获得学士学位，主要从事激光与光电功能晶体材料的研究。E-mail: jyliao@stu2019.jnu.edu.cn" ]
[ "张沛雄(1987-)，男，广东潮州人，博士，副研究员，2016年于中国科学院上海光学精密机械研究所获得博士学位，主要从事激光与光电功能晶体材料的研究。Email: pxzhang@jnu.edu.cn" ]
- 基金信息：国家自然科学基金(51972149;51872307;61935010;51702124);中央高校基本科研业务费专项资金(21620445)
DOI：10.37188/CJL.20210312
中图分类号： O482.31纸质出版日期：2021-12，
收稿日期：2021-09-28，
修回日期：2021-10-06，
扫 描 看 全 文
廖家裕, 陈鸿玲, 牛晓晨, 等. 新型中红外激光晶体Er3+/Ho3+/Eu3+∶PbF2的生长和性能[J]. 发光学报, 2021,42(12):1852-1862.
Jia-yu LIAO, Hong-ling CHEN, Xiao-chen NIU, et al. Growth and Properties of Novel Mid-infrared Laser Crystal Er3+ /Ho3+/Eu3+∶PbF2[J]. Chinese Journal of Luminescence, 2021,42(12):1852-1862.
廖家裕, 陈鸿玲, 牛晓晨, 等. 新型中红外激光晶体Er3+/Ho3+/Eu3+∶PbF2的生长和性能[J]. 发光学报, 2021,42(12):1852-1862. DOI： 10.37188/CJL.20210312.
Jia-yu LIAO, Hong-ling CHEN, Xiao-chen NIU, et al. Growth and Properties of Novel Mid-infrared Laser Crystal Er3+ /Ho3+/Eu3+∶PbF2[J]. Chinese Journal of Luminescence, 2021,42(12):1852-1862. DOI： 10.37188/CJL.20210312.
摘要
采用垂直布里奇曼法成功生长了Er
3+
/Ho
3+
/Eu
3+
三掺杂PbF
2
的中红外激光晶体。该晶体在980 nm泵浦下，首次获得了从2 600~3 200 nm的宽带中红外发光，其半高宽(FWHM)为300 nm，这是Er
3+
的2.7 μm发射峰(2 600~2 950 nm)和Ho
3+
的2.9 μm发射峰(2 800~3 200 nm)叠加的结果。此外，失活离子Eu
3+
的引入可以有效克服Er
3+
和Ho
3+
离子的自终止瓶颈效应。研究发现，与Er
3+
/Ho
3+
∶PbF
2
晶体相比，Er
3+
/Ho
3+
/Eu
3+
∶PbF
2
晶体具有更高的荧光分支比，在Er
3+
:
4
I
11/2
→
4
I
13/2
跃迁为18.7%和Ho
3+
:
5
I
6
→
5
I
7
跃迁为18.0%；以及有更大的发射截面，在2 745 nm时为0.621×10
-20
cm
2
，在2 905 nm时为0.728×10
-20
cm
2
。这些有利的光谱特性表明，Er
3+
/Ho
3+
/Eu
3+
∶PbF
2
晶体在商用980 nm激光二极管泵浦下，可能是2.6~3.2 μm中红外激光器的一种有前景的材料。
Abstract
In this work
Er
3+
/Ho
3+
/Eu
3+
tri-doped PbF
2
mid-infrared laser crystal was successfully grown using the vertical Bridgman method. As far as we know
it is the first time to obtain a broadband mid-infrared luminescence extending from 2 600 nm to 3 200 nm with a full width at half maximum (FWHM) of 300 nm under 980 nm pump
which is the result of the superposition of the 2.7 μm emission peak of Er
3+
(2 600-2 950 nm) and 2.9 μm emission peak of Ho
3+
(2 800-3 200 nm). What's more
the introduction of deactivation ions Eu
3+
can conquer self-termination bottleneck of both Er
3+
and Ho
3+
ions effectively. It is found that
compared with the Er
3+
/Ho
3+
∶PbF
2
crystal
the Er
3+
/Ho
3+
/Eu
3+
∶PbF
2
crystal has higher fluorescence branching ratio 18.7% of Er
3+
:
4
I
11/2
→
4
I
13/2
transition and 18.0% of Ho
3+
:
5
I
6
→
5
I
7
transition
and larger emission cross section 0.621×10
-20
cm
2
at 2 745 nm and 0.728×10
-20
cm
2
at 2 905 nm. These advantageous spectroscopic characteristics suggest that the Er
3+
/Ho
3+
/Eu
3+
∶PbF
2
crystal may be a promising material for 2.6-3.2 μm mid-infrared lasers under the pump of a commercial 980 nm laser diodes (LDs).
关键词
PbF2晶体Er3+/Ho3+/Eu3+中红外发光失活
Keywords
PbF2 crystalEr3+/Ho3+/Eu3+mid-infrared luminescencedeactivation
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