| Photoluminescence of an Yba＋/Al3＋-codoped microstructured optical fibre |
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| 作者姓名： | Xia Chang-Ming Zhou Gui-Yao Hart Ying Hou Lan-Tian |
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| 作者单位： | [1]~tate Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China [2]School of Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou 510006, China |
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| 基金项目： | Project supported by the State Key Program of National Natural Science Foundation of China （Grant No. 60637010） and the Major Basic Research Development Program of China （Grant No. 2010CB327604）. |
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| 摘 要： | An Yba＋/Al3＋-codoped microstructured optical fibre is prepared based on photonic crystal fibre technology. The characteristic spectra of preforms and fibres are experimentally investigated. The results show that under a 971 nm excitation, besides the known infrared fluorescence luminescence around 1050 nm, a blue luminescence peak at 486 nm is obtained. Moreover, an unexpected emission peak at 730 nm is also observed. The photoluminescence mechanism of an Yba＋/Al3＋-codoped microstructured optical fibre is discussed. The emission peak at 486 nm is attributed to the cooperative upconversion resulting from pairs of Yb3＋ ions, and the emission peak around 730 nm is ascribed to the stimulated Raman scattering because of nonlinear effects of microstructured optical fibre. The Yba＋/Al3＋-codoped microstructured optical fibre is promising for varieties of applications from laser printing and optical recording to cancer treatments, such as photodynamic therapy.
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| 关 键 词： | 微结构光纤 光致发光 YBA 共掺 合作上转换 非线性效应 光动力疗法 光子晶体 |
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