Birefringence in a dielectric with periodic structure
Birefringence in a dielectric with periodic structure
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具有周期性结构的电介质中的双折射
DOI：
10.1109/jlt.1984.1073651
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发表时间：
1984
影响因子：
4.7
通讯作者：
M. Tateda
中科院分区：
文献类型：
--
作者：
M. Tateda
本文对周期结构介质中的双折射现象进行了一般分析。介电各向异性近似为介电常数分布函数的平方傅立叶系数的加权和。结果表明，介电常数为ε 1或ε2的周期性阶梯结构比介电常数最大和最小分别为ε 1和ε2的梯度结构具有更大的各向异性。正弦结构的介电各向异性约为阶梯结构介电各向异性的60%。
A general analysis is presented of birefringence in a periodic structure medium. The dielectric anisotropy is approximated by the weighted sum of the squared Fourier coefficients for the permittivity distribution function. It is clarified that a periodic stepwise structure, whose permittivity is either ε1or ε2, has a larger anisotropy than that of any other graded structure whose maximum and minimum permittivities are ε1and ε2, respectively. It is also pointed out that the dielectric anisotropy in a sinusoidal structure is about 60 percent of that in a stepwise structure.