Experimental and numerical investigation of terahertz transmission through strongly scattering sub-wavelength size spheres

被引：15

作者：

Mujumdar, S ^{[1
]}

Chau, KJ ^{[1
]}

Elezzabi, AY ^{[1
]}

机构：

[1] Univ Alberta, Dept Elect & Comp Engn, Ultrafast Photon & Nanoopt Lab, Edmonton, AB T6G 2V4, Canada

来源：

APPLIED PHYSICS LETTERS | 2004年 / 85卷 / 25期

基金：

加拿大自然科学与工程研究理事会;

关键词：

D O I：

10.1063/1.1839272

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report on experimental and numerical studies of terahertz propagation in strongly scattering random media. The experimental variations of the terahertz pulse group delay and scattering-induced effects such as temporal pulse distortion, spectral decay, and power attenuation as a function of sample thickness are in excellent agreement with those predicted from a Monte Carlo photon migration model. The transmitted pulses are analyzed with a classical effective medium approximation. Due to the subwavelength size of the random scatterers, it is found that the effective medium approximation underestimates the accumulated pulse phase acquired by the high frequencies during pulse propagation. (C) 2004 American Institute of Physics.

引用

页码：6284 / 6286

页数：3

共 11 条

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[2]

CHYLEK P, 2000, LIGHT SCATTERING NON, P273, DOI DOI 10.1016/B978-012498660-2/50036-7

[3] FAR-INFRARED TIME-DOMAIN SPECTROSCOPY WITH TERAHERTZ BEAMS OF DIELECTRICS AND SEMICONDUCTORS [J].