Terahertz dielectric properties of high-resistivity single-crystal ZnO

Abul Kalam Azad; Jiaguang Han; Weili Zhang

doi:10.1063/1.2164903

Terahertz dielectric properties of high-resistivity single-crystal ZnO

Abul Kalam Azad
, Jiaguang Han
, Weili Zhang

Research output: Contribution to journal › Article › peer-review

65 Scopus citations

Abstract

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) E1 phonon mode centered at frequency (ωTO 2π) 12.42 THz.

Original language	English
Article number	021103
Pages (from-to)	1-3
Number of pages	3
Journal	Applied Physics Letters
Volume	88
Issue number	2
DOIs	https://doi.org/10.1063/1.2164903
State	Published - Jan 23 2006
Externally published	Yes

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title = "Terahertz dielectric properties of high-resistivity single-crystal ZnO",

abstract = "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) E1 phonon mode centered at frequency (ωTO 2π) 12.42 THz.",

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AU - Han, Jiaguang

AU - Zhang, Weili

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N2 - 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) E1 phonon mode centered at frequency (ωTO 2π) 12.42 THz.

AB - 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) E1 phonon mode centered at frequency (ωTO 2π) 12.42 THz.

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JO - Applied Physics Letters

JF - Applied Physics Letters

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Terahertz dielectric properties of high-resistivity single-crystal ZnO

Abstract

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