Modelling heterogeneous dielectric mixtures in the terahertz regime: a quasi-static effective medium theory

被引：79

作者：

Scheller, Maik ^{[1
]}

Wietzke, Steffen ^{[1
]}

Jansen, Christian ^{[1
]}

Koch, Martin ^{[2
]}

机构：

[1] Tech Univ Carolo Wilhelmina Braunschweig, Inst Hochfrequenztech, D-38106 Braunschweig, Germany

[2] Univ Marburg, Fachbereich Phys, D-35032 Marburg, Germany

来源：

JOURNAL OF PHYSICS D-APPLIED PHYSICS | 2009年 / 42卷 / 06期

关键词：

TIME-DOMAIN SPECTROSCOPY; CONSTANTS;

D O I：

10.1088/0022-3727/42/6/065415

中图分类号：

O59 [应用物理学];

学科分类号：

070305 [高分子化学与物理];

摘要：

We present a quasi-static effective medium theory for heterogeneous dielectric mixtures consisting of particles embedded in a host matrix. The model remains valid for all mixture concentrations and can also consider particle shape distributions, thus overcoming the restrictions of previous approaches. The theory is experimentally validated by highly accurate terahertz time domain spectroscopy measurements on three different polymeric compound systems. A comparison with commonly applied theories is given.

引用

页数：5

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