Optimal design for hollow fiber inner-coated by dielectric layers with surface roughness
Optimal design for hollow fiber inner-coated by dielectric layers with surface roughness
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DOI：
10.1117/12.907687
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发表时间：
2011-09
期刊：
影响因子：
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通讯作者：
Bangshan Sun;Xiaolin Tang;Yi-Wei Shi;K. Iwai;M. Miyagi
中科院分区：
文献类型：
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作者：
Bangshan Sun;Xiaolin Tang;Yi-Wei Shi;K. Iwai;M. Miyagi
本文应用射线光学理论，对内涂金属层和多层介质层的中空光纤进行了优化设计。多层中空光纤在红外波段的传输特性更依赖于薄膜表面的粗糙度。比较纤维与光滑和粗糙的薄膜进行了详细的讨论。对薄膜厚度、内半径、层数和折射率进行了优化设计。计算结果对考虑镀膜工艺缺陷的多层金属中空纤维的结构设计、材料选择和进一步的制备具有重要意义。
We report the optimal design for hollow fiber inner-coated with metallic and multi-dielectric layers by using ray-optics theory. Transmission characteristics of the multilayer hollow fiber are more dependent on the film surface roughness in infrared region. Comparisons of fibers with smooth and rough films are made and discussed in detail. The optimal design for film thickness, inner radius, the number of layers and refractive indices is presented. The calculation results are important for structure design, material selection and further fabrication of metallic multilayer hollow fiber when considering imperfections in film coating techniques.