Anisotropic Composite Materials with Intensity-Dependent Permittivity Tensor: The Bruggeman Approach
Anisotropic Composite Materials with Intensity-Dependent Permittivity Tensor: The Bruggeman Approach
复制标题
具有强度相关介电常数张量的各向异性复合材料：布鲁格曼方法
DOI：
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发表时间：
2001
期刊：
影响因子：
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通讯作者：
A. Lakhtakia
中科院分区：
文献类型：
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作者：
M. Lakhtakia;A. Lakhtakia
布鲁格曼方法的实施是为了均质化一组相同的、类似取向的、电小、具有与强度相关的折射率的椭圆体颗粒，这些颗粒随机且均匀地分散在各向同性、线性、介电主体材料中。在最简单的近似中，均匀化复合介质被假定为立方非线性和各向异性。非线性的各向异性可能与线性的各向异性有很大不同。非线性的可能增强也是各向异性的，沿着椭圆体粒子的最短主轴具有最理想的性能。
The Bruggeman approach is implemented to homogenize a collection of identical, similarly oriented, electrically small, ellipsoidal particles with intensity-dependent refractive index that are dispersed randomly and homogeneously in an isotropic, linear, dielectric host material. The homogenized composite medium is assumed to be cubically nonlinear and anisotropic, in the simplest approximation. The anisotropy of nonlinearity may be considerably different from the anisotropy of the linearity. The possible enhancement of nonlinearity is also anisotropic, with the most desirable performance along the shortest principal axis of the ellipsoidal particles.