| Yb:FAP晶体的光谱特性 |
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| 引用本文： | 杨培志,邓佩珍.Yb:FAP晶体的光谱特性[J].光子学报,1999,28(7):634-637. |
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| 作者姓名： | 杨培志 邓佩珍 |
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| 作者单位： | 中国科学院上海光学精密机械研究所 |
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| 基金项目： | 国家自然科学基金,国家高技术863—416资助项目 |
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| 摘 要： | 研究了Yb:FAP晶体的光谱特性.用980nm的InGaAs激光二极管激发测量了Yb:FAP晶体的偏振发射光谱和荧光寿命,结合晶体的偏振吸收光谱,采用对易法计算了晶体的吸收截面和发射截面.讨论了Yb3+掺杂浓度对Yb:FAP的光谱参数的影响.在较低掺杂浓度下,Yb:FAP晶体π偏振方向在903nm处的吸收截面为10×10-20cm2,在1.043μm处的发射截面为5.8×10-20cm2,激光上能级的荧光寿命为1.1ms.比较了Yb:FAP晶体和Yb:YAG晶体的光谱性能参数.
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| 关 键 词： | Yb:FAP晶体 偏振吸收光谱 偏振发射光谱 吸收截面 发射截面 掺杂浓度 |
| 收稿时间： | 1999-04-12 |
| 修稿时间： | 1999-04-12 |
SPECTROSCOPIC PROPERTIES OF Yb DOPED CALCIUM FLUORAPATITE |
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| Yang Peizhi,Deng Peizhen,Huang Guosong,Xu Jun.SPECTROSCOPIC PROPERTIES OF Yb DOPED CALCIUM FLUORAPATITE[J].Acta Photonica Sinica,1999,28(7):634-637. |
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| Authors: | Yang Peizhi Deng Peizhen Huang Guosong Xu Jun |
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| Institution: | Yang Peizhi,Deng Peizhen,Huang Guosong,Xu Jun Shanghai Institute of Optics and Fine
Mechanics,Chinese Academy of Science,Shanghai 201800 |
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| Abstract: | The spectroscopy performance of Yb-doped calcium fluorapatite(Yb:FAP)was assessed by measuring polarization absorption spectra and polarization emission spectra and fluorescence lifetime of Yb:FAP.The emission cross section has been evaluated using the absorption cross section and principle of reciprocity.The optimal doping level was determined by studying of spectroscopic performance parameters of Yb:FAP with different doped concentration.The π polarization absorption and emission cross sections of Yb3+ in FAP are found to be substantially larger than those of other Yb-doped media.Favorable spectroscopic characteristics parameters indicated:Yb:FAP crystal should prove visible for many diode pumped solid state laser application to low-and medium-apower in near future. |
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| Keywords: | Yb:FAP crystal Polarization absorption spectra Polarization emission spectra Absorption cross section Emission cross section Doping level |
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