Effect of interface resistance on terahertz pulses in bimetallic microparticles

被引：13

作者：

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：

PHYSICAL REVIEW B | 2006年 / 73卷 / 08期

关键词：

D O I：

10.1103/PhysRevB.73.085419

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We describe time-domain studies of terahertz (THz) pulse propagation in random bimetallic media composed of Au-coated Cu microparticles. Despite the similar electrical properties of Cu and Au, coating the Cu microparticles with Au nanolayers increases the effective resistivity of the particles by up to two orders of magnitude, resulting in large attenuation and phase modulation of the transmitted THz pulses. The experimental results are in reasonable agreement with simulations based on a damped harmonic oscillator.

引用

页数：6

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