Antireflection Coating at Metamaterial Waveguide Structures for Solar Energy Applications
Antireflection Coating at Metamaterial Waveguide Structures for Solar Energy Applications
复制标题
用于太阳能应用的超材料波导结构的减反射涂层
DOI：
10.1016/j.egypro.2014.06.038
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发表时间：
2014
期刊：
影响因子：
--
通讯作者：
M. Ubeid
中科院分区：
文献类型：
--
作者：
M. Shabat;M. Ubeid
从理论上研究了周期性超材料-介质多层结构的光学反射特性。如果将该结构置于两个半无限介质之间，并且每个周期构成的两个平板具有相同的宽度和相反的折射率，则该结构是一个双折射涂层。麦克斯韦方程组用于确定入射波在每一层的电场和磁场。应用Snell定律，在各层界面处施加边界条件，计算结构的反射和透射系数。通过递归方法使用这些系数来确定反射和发射功率。在数值结果中，反射功率计算和说明作为入射波的波长，入射角和周期数的函数，重点是适当的折射率。
The optical reflection properties of a periodic metamaterial-dielectric multilayered structure are investigated theoretically. The structure is an antireflection coating if it is placed between two semi-infinite media of the same kind and the two slabs constituted each period have the same width and opposite refractive indices. Maxwell's equations are used to determine the electric and magnetic fields of the incident waves at each layer. Snell's law is applied and the boundary conditions are imposed at each layer interface to calculate the reflected and transmitted coefficients of the structure. The reflected and transmitted powers are determined using these coefficients by a recursive method. In the numerical results, the reflected powers are computed and illustrated as a function of wavelength of the incident waves, angle of incidence and number of periods with the emphasis on the appropriate refractive indices.