
人工晶体学报 ›› 2026, Vol. 55 ›› Issue (8): 1206-1212.DOI: 10.16553/j.cnki.issn1000-985x.2026.0075
张家玮1(
), 徐天瑞1,2, 吴安婷1, 刘龙鑫3, 姜正元1, 苏骏扬1, 王无敌3, 刘鹏1, 刘坚1(
), 蔡宏兵2(
), 徐晓东1, 徐军3
收稿日期:2026-04-27
出版日期:2026-08-20
发布日期:2026-08-26
通信作者:
刘坚,博士,讲师。E-mail:jianliu586@jsnu.edu.cn;作者简介:张家玮(2002—),男,河北省人,硕士研究生。E-mail:a1354445221zjw@163.com基金资助:
ZHANG Jiawei1(
), XU Tianrui1,2, WU Anting1, LIU Longxin3, JIANG Zhengyuan1, SU Junyang1, WANG Wudi3, LIU Peng1, LIU Jian1(
), CAI Hongbing2(
), XU Xiaodong1, XU Jun3
Received:2026-04-27
Online:2026-08-20
Published:2026-08-26
摘要: 单晶光纤兼具晶体材料的优异光学性能与光纤结构的紧凑性优势,是高功率、超快激光领域的研究热点。本文采用激光加热基座法成功生长了不同掺杂浓度的Nd∶LuScO3单晶光纤,通过X射线衍射(XRD)研究了单晶光纤结构,并系统研究了光谱性能,包括吸收/发射截面、荧光寿命和Judd-Ofelt(J-O)理论分析。同时还研究了掺杂浓度对荧光寿命的影响。XRD证实生长所得的Nd∶LuScO3单晶光纤为立方晶系,无杂相。通过吸收光谱计算得到Nd∶LuScO3单晶光纤在807 nm处的吸收截面为1.16×10-20 cm2,半峰全宽为10.63 nm。J-O强度参数分别为Ω2=0.67×10-20 cm2、Ω4=2.59×10-20 cm2、Ω6=0.85×10-20 cm2,4F3/2→4I9/2、4I11/2、4I13/2跃迁发射截面分别为0.99×10-20、2.06×10-20、0.41×10-20 cm2。研究结果表明,Nd∶LuScO3单晶光纤是一种有潜力实现近红外波段超快激光输出的增益介质。
中图分类号:
张家玮, 徐天瑞, 吴安婷, 刘龙鑫, 姜正元, 苏骏扬, 王无敌, 刘鹏, 刘坚, 蔡宏兵, 徐晓东, 徐军. Nd∶LuScO3单晶光纤的生长及光谱性能研究[J]. 人工晶体学报, 2026, 55(8): 1206-1212.
ZHANG Jiawei, XU Tianrui, WU Anting, LIU Longxin, JIANG Zhengyuan, SU Junyang, WANG Wudi, LIU Peng, LIU Jian, CAI Hongbing, XU Xiaodong, XU Jun. Growth and Spectroscopic Properties of Nd∶LuScO3 Crystal Fibers[J]. Journal of Synthetic Crystals, 2026, 55(8): 1206-1212.
| Structural parameters | 0.5% Nd∶LuScO3 | 0.7% Nd∶LuScO3 | 1.0% Nd∶LuScO3 |
|---|---|---|---|
| Crystal structure | Cubic | Cubic | Cubic |
| Space group | Ia3 | Ia3 | Ia3 |
| a=b=c/Å | 10.101 1 | 10.102 7 | 10.103 7 |
| α=β=γ/(°) | 90 | 90 | 90 |
| V/Å | 1 030.64 | 1 031.13 | 1 031.43 |
| ρcal/(g·cm-3) | 6.903 | 6.898 | 6.893 |
表1 Nd∶LuScO3单晶光纤的结构参数
Table 1 Structural parameters of Nd∶LuScO3 crystal fibers
| Structural parameters | 0.5% Nd∶LuScO3 | 0.7% Nd∶LuScO3 | 1.0% Nd∶LuScO3 |
|---|---|---|---|
| Crystal structure | Cubic | Cubic | Cubic |
| Space group | Ia3 | Ia3 | Ia3 |
| a=b=c/Å | 10.101 1 | 10.102 7 | 10.103 7 |
| α=β=γ/(°) | 90 | 90 | 90 |
| V/Å | 1 030.64 | 1 031.13 | 1 031.43 |
| ρcal/(g·cm-3) | 6.903 | 6.898 | 6.893 |
| Excited state(from 4I9/2) | |||
|---|---|---|---|
| 2L15/2+4D1/2+2I11/2+4D5/2+4D3/2 | 358 | 1.541 | 1.478 |
| 2P1/2 | 407 | 0.105 | 0.095 |
| 2K15/2+2G9/2+2D3/2+4G11/2 | 494 | 0.089 | 0.146 |
| 4G7/2+4G9/2+2K13/2 | 525 | 0.629 | 0.683 |
| 4G5/2+2G7/2 | 597 | 2.247 | 2.252 |
| 4F9/2 | 696 | 0.089 | 0.060 |
| 4F7/2+4S3/2 | 746 | 0.775 | 0.676 |
| 4F5/2+2H9/2 | 815 | 0.937 | 1.076 |
| RMSΔS/(10-20 cm2) | 0.089 | ||
表2 Nd∶LuScO3单晶光纤吸收谱不同跃迁的平均波长及实验和理论电偶极谱线强度
Table 2 Average wavelength, experimental and calculated electric dipole line strengths of different transitions in absorption spectra of Nd∶LuScO3 crystal fibers
| Excited state(from 4I9/2) | |||
|---|---|---|---|
| 2L15/2+4D1/2+2I11/2+4D5/2+4D3/2 | 358 | 1.541 | 1.478 |
| 2P1/2 | 407 | 0.105 | 0.095 |
| 2K15/2+2G9/2+2D3/2+4G11/2 | 494 | 0.089 | 0.146 |
| 4G7/2+4G9/2+2K13/2 | 525 | 0.629 | 0.683 |
| 4G5/2+2G7/2 | 597 | 2.247 | 2.252 |
| 4F9/2 | 696 | 0.089 | 0.060 |
| 4F7/2+4S3/2 | 746 | 0.775 | 0.676 |
| 4F5/2+2H9/2 | 815 | 0.937 | 1.076 |
| RMSΔS/(10-20 cm2) | 0.089 | ||
| Transition | ||||
|---|---|---|---|---|
| 4F3/2 | 336 | |||
| 4F3/2→4I9/2 | 925 | 1 403.82 | 47.12 | |
| 4F3/2→4I11/2 | 1 078 | 1 455.98 | 48.87 | |
| 4F3/2→4I13/2 | 1 394 | 113.03 | 3.79 | |
| 4F3/2→4I15/2 | 1 880 | 6.37 | 0.21 |
表3 Nd∶LuScO3单晶光纤的自发跃迁概率、荧光分支比和辐射寿命
Table 3 Spontaneous transition rate, fluorescent branch ratio and radiation lifetime of Nd∶LuScO3 crystal fiber
| Transition | ||||
|---|---|---|---|---|
| 4F3/2 | 336 | |||
| 4F3/2→4I9/2 | 925 | 1 403.82 | 47.12 | |
| 4F3/2→4I11/2 | 1 078 | 1 455.98 | 48.87 | |
| 4F3/2→4I13/2 | 1 394 | 113.03 | 3.79 | |
| 4F3/2→4I15/2 | 1 880 | 6.37 | 0.21 |
| Transition | λem/nm | FWHM/nm | σem/(10-20 cm2) |
|---|---|---|---|
| 4F3/2→4I9/2 | 898 | 9.77 | 0.99 |
| 4F3/2→4I11/2 | 1 081 | 12.57 | 2.06 |
| 4F3/2→4I13/2 | 1 366 | 14.96 | 0.41 |
表4 Nd∶LuScO3单晶光纤的发射峰值波长、半峰全宽和发射截面
Table 4 Emission wavelength, FWHM and emission cross sections of Nd∶LuScO3 crystal fiber
| Transition | λem/nm | FWHM/nm | σem/(10-20 cm2) |
|---|---|---|---|
| 4F3/2→4I9/2 | 898 | 9.77 | 0.99 |
| 4F3/2→4I11/2 | 1 081 | 12.57 | 2.06 |
| 4F3/2→4I13/2 | 1 366 | 14.96 | 0.41 |
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