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多坩埚温度梯度法生长Dy3+:LaF3晶体及发光特性
Luminescence Properties of Dy3+ Doped Lanthanum Fluoride Crystal by Multi-crucible Temperature Gradient Technology
- 发光学报 2021年42卷第2期 页码：158-164
- 作者机构：
1.杭州医学院 医学影像学院, 浙江 杭州 310053
2.云南大学 物理与天文学院, 云南 昆明 650500
3.安徽省繁昌第一中学, 安徽 芜湖 241200
4.同济大学 物理科学与工程学院, 上海 200092
5.昆明物理研究所, 云南 昆明 650223
- 作者简介：
[ "阮芳芳(1981－), 女, 浙江温州人, 博士, 副教授, 2009年于中国科学院近代物理研究所获得博士学位, 主要从事原子物理、表面物理的研究。E-mail:ruan.f@hmc.edu.cn" ]
[ "薛艳艳(1990－), 女, 山东临沂人, 博士, 2019年于同济大学获得博士学位, 主要从事稀土离子掺杂激光晶体方面的研究及应用。E-mail:xueyanyanf@163.com" ]
- 基金信息：国家自然科学基金(U1830104);云南大学生创新业训练项目掺镝氟化物中红外发光性能研究(202010673075);云南大学一流大学建设项目(C176220100155);中国科学院透明光功能无机材料重点实验室开放课题基金资助(KLTOIM202001)
DOI：10.37188/CJL.20200330
中图分类号： O482.31纸质出版日期：2021-2，
收稿日期：2020-11-2，
录用日期：2020-12-8
扫 描 看 全 文
阮芳芳, 杨龙, 胡广, 等. 多坩埚温度梯度法生长Dy3+:LaF3晶体及发光特性[J]. 发光学报, 2021,42(2):158-164.
Fang-fang RUAN, Long YANG, Guang HU, et al. Luminescence Properties of Dy3+ Doped Lanthanum Fluoride Crystal by Multi-crucible Temperature Gradient Technology[J]. Chinese Journal of Luminescence, 2021,42(2):158-164.
阮芳芳, 杨龙, 胡广, 等. 多坩埚温度梯度法生长Dy3+:LaF3晶体及发光特性[J]. 发光学报, 2021,42(2):158-164. DOI： 10.37188/CJL.20200330.
Fang-fang RUAN, Long YANG, Guang HU, et al. Luminescence Properties of Dy3+ Doped Lanthanum Fluoride Crystal by Multi-crucible Temperature Gradient Technology[J]. Chinese Journal of Luminescence, 2021,42(2):158-164. DOI： 10.37188/CJL.20200330.
摘要
采用多坩埚温度梯度法（Multi-crucible temperature gradient technology，MC-TGT）制备了Dy
3+
掺杂氟化镧（Dy
3+
：LaF
3
）晶体。通过电感耦合等离子体发射光谱仪、透射光谱、吸收光谱、荧光光谱等手段对Dy
3+
在LaF
3
晶体中的实际掺杂浓度、中红外透过光谱、可见光波段光谱特性等进行了研究。实验结果表明，Dy
3+
在LaF
3
晶体中的分凝系数约为0.8；格位浓度随着Dy
3+
掺杂浓度提高而增加，2% Dy：LaF
3
晶体中的格位浓度达5.90×10
20
ions·cm
-3
。在1% Dy：LaF
3
晶体中，采用400 nm光激发，发光中心波长位于601 nm的发射谱带强度最大，位于511 nm的发射峰最宽，半高宽达152 nm；改用450 nm光激发，最强发射峰移至677 nm，最宽发射峰位于568 nm处。提高Dy
3+
掺杂浓度到2%，采用400 nm或450 nm光激发，发光中心波长均位于478 nm和571 nm。在透射光谱2.5~9 μm范围内，Dy：LaF
3
晶体（厚度为0.96 mm）红外波段透过率达85%以上。Dy：LaF
3
晶体有望在可见光、中红外等激光领域得到应用。
Abstract
Novel Dy
3+
doped LaF
3
crystals is synthesized by multi-crucible temperature gradient technology(MC-TGT). The crystallographic sites concentration is up to 5.90×10
20
ions·cm
-3
for 2%Dy:LaF
3
following the segregation coefficient of 0.8 measured by inductively coupled plasma emission spectrometer. The photoluminescence spectra of 1%Dy:LaF
3
show the strongest wavelength peaked at 601 nm and the widest wavelength band centering at 511 nm under excitation wavelength of 400 nm. By changing the excitation wavelength to 450 nm
the strongest wavelength shifts to 677 nm and the widest wavelength band shifts to 568 nm in 1%Dy:LaF
3
respectively. In the case of 2%Dy:LaF
3
two main central wavelengths at 478 nm and 571 nm are observed under excitation wavelength of 400 nm or 450 nm. The optical quality of as-grown Dy
3+
:LaF
3
crystal is characterized by transmission spectra at the range of 2.5-11 μm. The optical transmission of Dy:LaF
3
crystal with thickness of 0.96 mm reaches over 85%
indicating a high-optical quality in the range of 2.5-9 μm. Thus
Dy:LaF
3
has great application potentials in visible and mid-infrared laser.
关键词
温度梯度法镝离子氟化镧晶体中红外透过光谱荧光光谱
Keywords
temperature gradient technologyDy3+LaF3 crystalmid-infrared transmission spectraphotoluminescence
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