Effective medium theory for 2D disordered structures: a comparison to numerical simulations

被引：11

作者：

Volkov, S. N. ^{[2
]}

Saarinen, Jarkko J. ^{[1
,4
]}

Sipe, J. E. ^{[3
]}

机构：

[1] Hokkai Gakuen Univ, Fac Engn, Sapporo, Hokkaido, Japan

[2] SNV Res, Toronto, ON, Canada

[3] Univ Toronto, Dept Phys, Toronto, ON, Canada

[4] Abo Akad Univ, Ctr Funct Mat, Turku, Finland

来源：

JOURNAL OF MODERN OPTICS | 2012年 / 59卷 / 11期

基金：

日本学术振兴会; 加拿大自然科学与工程研究理事会;

关键词：

optical constants; optical properties of nanoscale structures; numerical simulation; effective medium theory; disordered structure; EFFECTIVE DIELECTRIC-CONSTANT; METALLIC-FILMS; CONDUCTIVITY; PROPAGATION; COMPOSITE; GLASSES; COLORS;

D O I：

10.1080/09500340.2012.685187

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We compare predictions of effective medium theories with the results of numerical modeling of linear optical properties of two-dimensional disordered dielectric structures. A type of Maxwell Garnett effective medium theory is found to be in good agreement with the results of the plane-wave-expansion computations for pseudo-random samples of nanoscale cylindrical rods in a host medium, except for very high volume fractions of the rods. We analyze the extent and the reasons of the deviations of the effective medium theory from the numerical results, as well as the degree of applicability of our numerical model to real random samples of porous dielectrics.

引用

页码：954 / 961

页数：8

共 19 条

[1] BULK EFFECTIVE DIELECTRIC-CONSTANT OF A COMPOSITE WITH A PERIODIC MICROGEOMETRY [J].