| Pr3+∶Y2SiO5晶体中橙—蓝频率上转换过程 |
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| 引用本文： | 李建福,王晓丽,孙成林,杨海贵,蒋占魁.Pr3+∶Y2SiO5晶体中橙—蓝频率上转换过程[J].吉林大学学报(理学版),2006,44(6):976-979. |
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| 作者姓名： | 李建福 王晓丽 孙成林 杨海贵 蒋占魁 |
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| 作者单位： | 1. 烟台大学 光电信息科学技术学院, 山东省 烟台 264005; 2. 临沂师范学院 物理系, 山东省 临沂 276000; 3. 吉林大学 超硬材料国家重点实验室, 长春 130012; 4. 吉林大学 物理学院, 长春 130021 |
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| 基金项目： | 国家自然科学基金(批准号: 10074020). |
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| 摘 要： | 测量了Pr3+∶Y2SiO5晶体的吸收谱, 标定了室温下Pr3+在Y2SiO5晶体4f2组态内的能级. 利用579 nm激光激发Pr3+∶Y2SiO5晶体, 观察到480~515 nm上转换荧光带. 运用时间分辨激光光谱技术测量了3P0能级的上转换荧光衰减曲线. 通过研究上转换荧光的衰减曲线、 吸收谱、 激发谱和上转换荧光强度与泵浦激光单脉冲能量的关系, 确定了以1D2为中间态的能量转移上转换主要是上转换机制.
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| 关 键 词： | Pr3+∶Y2SiO5晶体 橙—蓝频率上转换 能量转移上转换 |
| 文章编号： | 1671-5489(2006)06-0976-04 |
| 收稿时间： | 2006-04-20 |
| 修稿时间： | 2006年4月20日 |
The Investigation on Orange-to-blue Frequency Upconversion Process in Pr3+∶Y2SiO5Crystal |
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| LI Jian-fu.The Investigation on Orange-to-blue Frequency Upconversion Process in Pr3+∶Y2SiO5Crystal[J].Journal of Jilin University: Sci Ed,2006,44(6):976-979. |
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| Authors: | LI Jian-fu |
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| Institution: | 1. College of Photoelectric\|information Technology, Yantai University, Yantai 264005, Shandong Province, China; 2. Department of Physics, Linyi Normal University, Linyi 276000, Shandong Province, China; 3. National Laboratory of Superhard Meterials, Jilin University, Changchun 130012, China; 4. College of Physics, Jilin University, Changchun 130021, China |
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| Abstract: | The blue upconversion via Pr3+∶Y2SiO5 crystals under excitation of 579 nm laser was investigated at room temperature. The upconverted luminescence band at the blue region from 480 nm to 515 nm was obtained with orange laser excitation. The upconversion mechanism was studied by observing the absorption and excitation spectra, the dependence of upconverted luminescence on pump power, and the decay profile of the upconverted luminescence. It was found that the upconverted luminescence was produced by energy transfer upconversion (ETU) process with 1D2 as intermediate state. |
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| Keywords: | Pr3+∶Y2SiO5 crystal orange-to-blue frequency upconversion energy transition upconversion |
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