Terahertz dielectric properties of high-resistivity single-crystal ZnO

被引：60

作者：

Azad, AK

Han, JG

Zhang, WL ^{[1
]}

机构：

[1] Oklahoma State Univ, Sch Elect & Comp Engn, Stillwater, OK 74078 USA

[2] Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China

[3] High Energy Accelerator Res Org, Tsukuba, Ibaraki 3050801, Japan

来源：

APPLIED PHYSICS LETTERS | 2006年 / 88卷 / 02期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1063/1.2164903

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We present experimental characterization of complex dielectric properties of high-resistivity single-crystal ZnO by terahertz time-domain spectroscopy in the frequency range extending from 0.3 to 3.5 THz. The measured refractive index, power absorption, and dielectric function are well fit by the pseudo-harmonic model of dielectric response. In addition, from the extrapolation of the experimental results, we show that the absorption is dominated by the transverse optical (TO) E-1 phonon mode centered at frequency (omega(TO)/2 pi) 12.42 THz. (c) 2006 American Institute of Physics.

引用

页码：1 / 3

页数：3

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