ELECTROMAGNETIC ENERGY-TRANSPORT IN A DENSE DISTRIBUTION OF CONDUCTING SPHERES

被引：3
作者：
FERRARI, LA
机构：
[1] Queens College, City University of New York, Flushing
来源：
JOURNAL OF APPLIED PHYSICS | 1990年 / 68卷 / 09期
关键词：
D O I：
10.1063/1.346189
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The scale dependence of transmission of microwave radiation at K-band frequencies (18-26.5 GHz) through a dense distribution of conducting spheres is studied for densities where localization is expected to occur. Scatterer packing fractions ranged from 0.16 to 0.22. Values of the elastic and transport mean free paths, and effective absorption lengths were obtained by fitting the transmission data to classical diffusion models. At the lowest densities the elastic mean free paths are within ∼15% of the value calculated with the single scattering formula. At f=0.22 the difference is about 30%; this result together with an absorption length of ∼6 cm could account for the failure to observe strong coherent effects and associated nonclassical transport.
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页码：4399 / 4405
页数：7
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