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波导材料SiO2的火焰水解生长及表征
Silica Waveguide Material Fabricated by FHD and Its Characterization
【摘要】 采用火焰法水解法在Si衬底上制备了厚度约20μm的波导下包层材料SiO2膜。利用原子力显微镜(AFM)、X射线光电子能谱(XPS)及可变入射角椭圆偏振仪(VASE)对其进行了测试分析,得到了空气中1400℃退火后SiO2的均方根粗糙度为0.184nm,原子比为1∶2.183,在1.55μm处的折射率为1.4564。
【Abstract】 SiO2 films about 20 μm were fabricated on Si substrates by flame hydrolysis deposition(FHD) as buffer layer for waveguides.The products annealed to 1 400 ℃ were characterized by atomic force microscopy(AFM), Xray photoelectron spectrum(XPS) and variable angle spectroscopic ellipsometry(VASE).The rootmeansquare surface roughness is 0.184 nm,the ratio of Si:O is 1∶2.183,and the refractive index at 1.55 μm is 1.456 4.
【关键词】 二氧化硅;
火焰水解法;
表面特性;
光学常数;
【Key words】 SiO2; flame hydrolysis deposition; surface characteristic; optical constant;
【Key words】 SiO2; flame hydrolysis deposition; surface characteristic; optical constant;
【基金】 国家重点基础研究发展规划资助项目(G2000036602)
- 【文献出处】 光电子·激光 ,Journal of Optoelectronics.laser , 编辑部邮箱 ,2003年03期
- 【分类号】TN252
- 【被引频次】6
- 【下载频次】78