| Tm:YVO4晶体的光谱参数计算 |
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| 引用本文： | 宋峰,郭红沧,张万林,张潮波,商美茹,张光寅.Tm:YVO4晶体的光谱参数计算[J].光谱学与光谱分析,2002,22(1):1-4. |
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| 作者姓名： | 宋峰 郭红沧 张万林 张潮波 商美茹 张光寅 |
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| 作者单位： | 南开大学光子学中心,天津,300071 |
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| 基金项目： | 国家自然科学基金资助项目 (6990 80 0 2 ) |
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| 摘 要： | 由测量的Tm :YVO4晶体的吸收光谱 ,考虑到单轴晶体在各个方向上的吸收不同和折射率随波长的变化 ,根据Judd Ofelt理论计算了Tm3 +在YVO4中的强度参数、各个能级的振子强度、自发辐射几率、荧光分支比、积分发射截面等参数。强度参数为Ω2 =1 9416× 10 - 2 0 (cm2 ) ,Ω4=0 15 6 8× 10 - 2 0 (cm2 ) ,Ω6=0 396 3× 10 - 2 0 (cm2 )。计算结果表明 ,1 D2 → 3 F4的跃迁几率远大于1 D2 向其他各个能级的跃迁几率
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| 关 键 词： | Tm：YVO4 光谱特性 吸收光谱 钒酸钇晶体 钐 掺杂 发光学 光谱参数 计算 |
| 文章编号： | 1000-0593(2002)01-0004-04 |
| 修稿时间： | 2000年12月26 |
Caculation of Spectroscopic Properties of Tm:YVO4 Crystals |
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| SONG Feng,GUO Hong-cang,ZHANG Wan-lin,ZHANG Chao-bo,SHANG Mei-ru,and ZHANG Guang-yin Photonics Center,College of Physics Sciences,Nankai University,Tianjin ,China.Caculation of Spectroscopic Properties of Tm:YVO4 Crystals[J].Spectroscopy and Spectral Analysis,2002,22(1):1-4. |
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| Authors: | SONG Feng GUO Hong-cang ZHANG Wan-lin ZHANG Chao-bo SHANG Mei-ru and ZHANG Guang-yin Photonics Center College of Physics Sciences Nankai University Tianjin China |
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| Institution: | Photonics Center, College of Physics Sciences, Nankai University, Tianjin 300071, China. |
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| Abstract: | Sigma and pi polarized absorption spectra of Tm:YVO4 crystal have been measured at room temperature. Considering the difference of the sigma and pi polarized absorption spectra and the changing of the refractive index with different wavelengths, we calculate the intensity parameters of Tm3+ in crystal YVO4 which are omega 2 = 1.9416 x 10(-20) (cm2), omega 4 = 0.1568 x 10(-20) (cm2), omega 6 = 0.3963 x 10(-20) (cm2) by Judd-Ofelt theory. The spectra characteristic parameters, such as radiative transition rates, luminescence branching ratio, total radiative lifetime and integral cross-section are also calculated. The results show that the spontaneous rate of the transition 1D2-->3F4 is much higher than that of the transition 1D2 to other levels. |
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| Keywords: | TmYVO 4 Tm 3+ Spectroscopic properties |
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