| 铌酸锶钡薄膜的微结构与电光性能的研究 |
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| 引用本文： | 叶辉,Melanie M T Ho,Mak CL.铌酸锶钡薄膜的微结构与电光性能的研究[J].光学学报,2002,22(10):170-1175. |
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| 作者姓名： | 叶辉 Melanie M T Ho Mak CL |
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| 作者单位： | 1. 浙江大学现代光学仪器国家重点实验室,杭州,310027
2. 香港理工大学应用物理系及材料研究中心,香港九龙 |
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| 基金项目： | 浙江省自然科学基金 (5 0 0 0 77)资助课题 |
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| 摘 要： | 本文叙述了使用溶胶凝胶法在MgO(0 0 1)的衬底上制备铌酸锶钡薄膜的过程 ,膜层厚度可达 5 μm。通过X射线衍射、摇摆曲线、扫描、拉曼散射光谱等方法研究了薄膜的微结构性能 ,实验发现 ,铌酸锶钡薄膜具有了较好的 (0 0 1)方向的优先取向性能 ,并且随着薄膜厚度的增加 ,其晶体取向性也会随之不断改进。熔石英的透明衬底上生长的SBN薄膜具有较大的电致双折射效应 ,其有效电光系数能够高达 6 6 2× 10 -11m/V。
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| 关 键 词： | 铌酸锶钡薄膜 微结构 电光性能 光纤通信 |
| 收稿时间： | 2001/10/18 |
Microstructure and Electrooptical Properties of Strontium Barium Niobate Thin Film |
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| Melanie M T Ho,Mak CL.Microstructure and Electrooptical Properties of Strontium Barium Niobate Thin Film[J].Acta Optica Sinica,2002,22(10):170-1175. |
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| Authors: | Melanie M T Ho Mak CL |
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| Abstract: | Strontium barium niobate thin film was successfully deposited on MgO(001) substrate with the sol gel process, the film thickness was up to 5 μm. The film microstructure was studied by the methods of X ray diffraction, X ray rocking curve, scan, as well as Raman scattering spectroscopy. The results show that the SBN thin films have the (001) preferred orientation, and the SBN tetragonal phase with enhanced (001) orientation were observed in thicker films. A very large value of 6.62×10 -11 m/V of effective transverse electro optical coefficient for the SBN film deposited on transparent fused silica substrate was measured. |
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| Keywords: | strontium barium niobate microsrtructure electro optical property |
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