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| K~+，Yb~(3+)：BaWO_4晶体光谱性能研究 | |
| 引用本文： | 臧竞存,谢丽艳,邹玉林,刘国庆,吕超,刘玉龙,冯宝华,陈雨金. K~+，Yb~(3+)：BaWO_4晶体光谱性能研究[J]. 北京工业大学学报, 2008, 34(11) |
| 作者姓名： | 臧竞存 谢丽艳 邹玉林 刘国庆 吕超 刘玉龙 冯宝华 陈雨金 |
| 作者单位： | 1. 北京工业大学,材料科学与工程学院,北京,100022 2. 北京工业大学,应用数理学院,北京,100022 3. 中国科学院,物理所光物理开放实验室,北京,100080 4. 中国科学院福建物质结构研究所,福州,350002 |
| 基金项目： | 中国科学院物理所光物理开放实验室课题 |
| 摘 要： | 为提高Yb~(3+)离子在BaWO_4晶体中的掺入量,采用了双掺K~+离子的方法,增大Yb~(3+)离子的分凝系数,使K~+(x(K~+)=0.01),Yb~(3+)(x(Yb~(3+))=0.02):BaWO_4晶体在977 nm处的吸收系数达到α=0.494 cm~(-1).研究了波长为930 nm的LD激光抽运时相应于Yb~(3+)离子~2F_(5/2)→~2F_(7/2)跃迁的960～1 020 nm的荧光光谱,其在1 005 nm处的发射截面σ_(?)=6.286 pm~2,荧光寿命为0.4 ms.实验表明K~+,Yb~(3+):BaWO_4是一种新型近红外激光晶体。 |
| 关 键 词： | 熔体中晶体生长 钡化合物 荧光 |
Spectrum Characteritics of K+,Yb3+:BaWO4 Crystals |
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| ZANG Jing-cun,XIE Li-yan,ZOU Yu-lin,LIU Guo-qing,L Chao,LIU Yu-long,FENG Bao-hua,CHEN Yu-jin. Spectrum Characteritics of K+,Yb3+:BaWO4 Crystals[J]. Journal of Beijing Polytechnic University, 2008, 34(11) | |
| Authors: | ZANG Jing-cun XIE Li-yan ZOU Yu-lin LIU Guo-qing L Chao LIU Yu-long FENG Bao-hua CHEN Yu-jin |
| Affiliation: | ZANG Jing-cun,XIE Li-yan,ZOU Yu-lin,LIU Guo-qing,L(U) Chao,LIU Yu-long,FENG Bao-hua,CHEN Yu-jin |
| Abstract: | To increase concentration of yb~(3+)-ions in BaWO_4 crystals,co-doped K~+-ions method were adopted.Absorption coefficient of K~+(x(K+~)=0.01),Yb~(3+)(x(Yb~(3+))=0.02):BaWO~4 crystals isα= 0.494 cm~(-1) at 977 nm.Fluorescence spectra of Yb~(3+)-ions from 960 nm to 1 020 nm,corresponding to transition ~2F_(5/2)→~2F_(7/2) was investigated.Emission cross section at 1 005 nm is 6.286×10~(-20)cm~2,livetime is 0.4 ms.The experimental result shows that K~+,Yb~(3+):BaWO_4 is a potential laser crystal. |
| Keywords: | crystal growth from melt barium compounds fluorescence |
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