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At present, in the process of urban and rural integration, a wide gap of professional skilled per- sonnel, restricting the carrying out of the urban-rural integration, and vocational education is an important way to cultivate skilled personnel, the correct guide on the development of vocational education in promoting the integration of urban and rural areas have very great significance. In this regard, this paper explores the requirements for the development of vocational education and vocational education in urban and rural inte- gration problems, based on the development of integrated urban and rural construction requirements of the proposed countermeasures of the development of vocational education, vocational education in order to promote the integration of urban and rural play a greater role.
以新型太赫兹低损耗材料Topas环烯烃共聚物为基质，设计了一种基于带隙效应传输太赫兹波的空气芯聚合物光子晶体光纤。应用有限元方法对光纤的传输特性进行了分析。结果表明，该光纤在1.47 THz附近具有宽度约为0.2 THz的连续低损耗传输带宽，可以很好地将太赫兹波限制在空气芯中传输。在1.51 THz处获得了0.13 cm？1最小总损耗值。所设计的太赫兹Topas光子带隙光纤具备结构简单、易制备、直径小而易弯曲的特点。
An air core photonic bandgap fiber is designed based on the novel Terahertz low-loss material Topas cyclic olefin copolymer. Propagation properties in the terahertz band of the fiber are investigated by using the finite element method. Numerical results indicate that the fiber has a low loss photonic bandgap within a broadband area about 0.2 THz around 1.47 THz, and THz wave is welled confined in the air core. Loss reaches the minimum value of 0.13 cm？1 at 1.51 THz. Struc- ture of designed terahertz Topas photonic bandgap fiber is simple, feasible for fabrication and bendable because of the relatively small diameter.