Optical and dielectric properties of ZnO tetrapod structures at terahertz frequencies

Jiaguang Han; Zhiyuan Zhu; Sanith Ray; Abul K. Azad; Weili Zhang; Mingxia He; Shihong Li; Yiping Zhao

doi:10.1063/1.2222329

Optical and dielectric properties of ZnO tetrapod structures at terahertz frequencies

Jiaguang Han
, Zhiyuan Zhu
, Sanith Ray
, Abul K. Azad
, Weili Zhang
, Mingxia He
, Shihong Li
, Yiping Zhao

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

72 Scopus citations

Abstract

The low-frequency optical and dielectric properties of ZnO tetrapod structures prepared by thermophysical method were studied by terahertz time-domain spectroscopy. The power absorption, refractive index, and the complex dielectric function were measured in the frequency range from 0.2 to 3.5 THz. Based on a simple effective medium theory, the low-frequency dielectric properties of ZnO tetrapods were found to be associated with the transverse optical E ₁ phonon mode, which is consistent with that observed in bulk single-crystal ZnO.

Original language	English
Article number	031107
Journal	Applied Physics Letters
Volume	89
Issue number	3
DOIs	https://doi.org/10.1063/1.2222329
State	Published - Jul 28 2006
Externally published	Yes

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10.1063/1.2222329

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title = "Optical and dielectric properties of ZnO tetrapod structures at terahertz frequencies",

abstract = "The low-frequency optical and dielectric properties of ZnO tetrapod structures prepared by thermophysical method were studied by terahertz time-domain spectroscopy. The power absorption, refractive index, and the complex dielectric function were measured in the frequency range from 0.2 to 3.5 THz. Based on a simple effective medium theory, the low-frequency dielectric properties of ZnO tetrapods were found to be associated with the transverse optical E 1 phonon mode, which is consistent with that observed in bulk single-crystal ZnO.",

author = "Jiaguang Han and Zhiyuan Zhu and Sanith Ray and Azad, \{Abul K.\} and Weili Zhang and Mingxia He and Shihong Li and Yiping Zhao",

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T1 - Optical and dielectric properties of ZnO tetrapod structures at terahertz frequencies

AU - Han, Jiaguang

AU - Zhu, Zhiyuan

AU - Ray, Sanith

AU - Azad, Abul K.

AU - Zhang, Weili

AU - He, Mingxia

AU - Li, Shihong

AU - Zhao, Yiping

PY - 2006/7/28

Y1 - 2006/7/28

N2 - The low-frequency optical and dielectric properties of ZnO tetrapod structures prepared by thermophysical method were studied by terahertz time-domain spectroscopy. The power absorption, refractive index, and the complex dielectric function were measured in the frequency range from 0.2 to 3.5 THz. Based on a simple effective medium theory, the low-frequency dielectric properties of ZnO tetrapods were found to be associated with the transverse optical E 1 phonon mode, which is consistent with that observed in bulk single-crystal ZnO.

AB - The low-frequency optical and dielectric properties of ZnO tetrapod structures prepared by thermophysical method were studied by terahertz time-domain spectroscopy. The power absorption, refractive index, and the complex dielectric function were measured in the frequency range from 0.2 to 3.5 THz. Based on a simple effective medium theory, the low-frequency dielectric properties of ZnO tetrapods were found to be associated with the transverse optical E 1 phonon mode, which is consistent with that observed in bulk single-crystal ZnO.

UR - https://www.scopus.com/pages/publications/33746275464

U2 - 10.1063/1.2222329

DO - 10.1063/1.2222329

M3 - Article

SN - 0003-6951

VL - 89

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 3

M1 - 031107

ER -

Optical and dielectric properties of ZnO tetrapod structures at terahertz frequencies

Abstract

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