| 掺铒磷酸盐玻璃微球吸收光谱上的形貌共振 |
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| 引用本文： | 马乐,林国平,张磊,蔡志平.掺铒磷酸盐玻璃微球吸收光谱上的形貌共振[J].光学与光电技术,2008,6(3):26-29. |
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| 作者姓名： | 马乐 林国平 张磊 蔡志平 |
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| 作者单位： | 1. 厦门大学物理系,福建,厦门,361005
2. 厦门大学电子工程系,福建,厦门,361005 |
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| 摘 要： | 利用高温熔融冷却法制备了直径为82．4μm的掺铒磷酸盐玻璃微球，并利用熔融拉丝法制备了锥腰直径为2．3μm的熔锥光纤与其进行耦合，发现了掺铒玻璃微球吸收光谱中出现的等间距分布的滤波谱线。利用光学微球腔理论讨论了玻璃微球吸收光谱中的形貌共振现象，计算出该耦合系统的品质因数为1．31×10^4。利用Mie散射理论计算了谱线的吸收峰位置和峰间间距，计算结果与实验结果相符合。最后比较了两种峰间间距算法的优劣。
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| 关 键 词： | 回廊模 微球 磷酸盐玻璃 掺铒 结构共振 |
| 文章编号： | 1672-3392(2008)03-0026-04 |
| 收稿时间： | 2007/7/2 |
| 修稿时间： | 2007年7月2日 |
Morphology-Dependent Resonances in the Absorption Spectrum of Phosphate Microsphere |
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| MA Le,LIN Guo-ping,ZHANG Lei,CAI Zhi-ping.Morphology-Dependent Resonances in the Absorption Spectrum of Phosphate Microsphere[J].optics&optoelectronic technology,2008,6(3):26-29. |
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| Authors: | MA Le LIN Guo-ping ZHANG Lei CAI Zhi-ping |
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| Institution: | MA Le1 LIN Guo-ping1 ZHANG Lei1 CAI Zhi-ping2(1 Department of Physics,Xiamen University,Xiamen 361005,China,2 Department of Electronic Engineering,Xiamen,361005,China) |
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| Abstract: | Using the coupling system of a fiber taper with the waist diameter of 2.3 μm and an Er-doped phosphate microsphere with the refractive index of 1.536 and diameter of 82.4 μm, the absorption spectra of phosphate microsphere is measured. The structural resonance in the absorption spectra of phosphate microsphere is found. According to the microcavity theory, the structural resonance is analyzed, and the Mie scattering theory is used to calculate the position of the resonance modes and their spacing distance. The calculated result is in accordance with the observed resonance result. |
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| Keywords: | whispering gallery modes microsphere phosphate glass Er-doped structural resonance |
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