氧化铝晶体的太赫兹光谱特性研究

Gao Fang Li; Yan Xia Xu; Tao Hu; Xiao Bo Nie; Zheng Lan Bian; Zhi Ming Huang; Jun Hao Chu

doi:10.11972/j.issn.1001-9014.2021.01.007

氧化铝晶体的太赫兹光谱特性研究

Translated title of the contribution: Properties of Terahertz spectral in aluminium oxide crystal

Gao Fang Li, Yan Xia Xu, Tao Hu, Xiao Bo Nie, Zheng Lan Bian, Zhi Ming Huang, Jun Hao Chu

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

2 Scopus citations

Abstract

The spectral characteristics of aluminium oxide (Al₂O₃) in broadband terahertz wave range (0.2~3.0 THz) were investigated by using terahertz time-domain spectroscopy (THz-TDS). The terahertz time-domain spectra of Al₂O₃ crystal at different azimuthal angles is obtained by changing the angle between the crystal optical axis and the polarization direction of THz pulse. The refractive index and absorption coefficient of o- and e-waves are calculated, and the index ellipse of Al₂O₃ in THz band is drawn. The experimental results indicate that Al₂O₃ has large birefringence and low absorption coefficient in THz, with a birefringence as high as 0.36 and an absorption coefficient lower than 5 cm^-1. The phase and amplitude of THz pulse can be modulated based on the birefringence of the crystal. Al₂O₃ crystal can be used as "shaper" of THz pulse, which provides important reference for the application of terahertz wave in ultra-wideband and ultra-high speed communication systems.

Translated title of the contribution	Properties of Terahertz spectral in aluminium oxide crystal
Original language	Chinese (Traditional)
Pages (from-to)	38-43
Number of pages	6
Journal	Hongwai Yu Haomibo Xuebao/Journal of Infrared and Millimeter Waves
Volume	40
Issue number	1
DOIs	https://doi.org/10.11972/j.issn.1001-9014.2021.01.007
State	Published - Feb 2021
Externally published	Yes

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@article{072898389d984fa1b4698702dcfa4e37,

title = "氧化铝晶体的太赫兹光谱特性研究",

abstract = "The spectral characteristics of aluminium oxide (Al2O3) in broadband terahertz wave range (0.2\textasciitilde{}3.0 THz) were investigated by using terahertz time-domain spectroscopy (THz-TDS). The terahertz time-domain spectra of Al2O3 crystal at different azimuthal angles is obtained by changing the angle between the crystal optical axis and the polarization direction of THz pulse. The refractive index and absorption coefficient of o- and e-waves are calculated, and the index ellipse of Al2O3 in THz band is drawn. The experimental results indicate that Al2O3 has large birefringence and low absorption coefficient in THz, with a birefringence as high as 0.36 and an absorption coefficient lower than 5 cm-1. The phase and amplitude of THz pulse can be modulated based on the birefringence of the crystal. Al2O3 crystal can be used as {"}shaper{"} of THz pulse, which provides important reference for the application of terahertz wave in ultra-wideband and ultra-high speed communication systems.",

keywords = "Aluminium oxide, Birefringence, Pulse shaping, Terahertz time-domain spectroscopy",

author = "Li, \{Gao Fang\} and Xu, \{Yan Xia\} and Tao Hu and Nie, \{Xiao Bo\} and Bian, \{Zheng Lan\} and Huang, \{Zhi Ming\} and Chu, \{Jun Hao\}",

year = "2021",

month = feb,

doi = "10.11972/j.issn.1001-9014.2021.01.007",

language = "繁体中文",

volume = "40",

pages = "38--43",

journal = "Hongwai Yu Haomibo Xuebao/Journal of Infrared and Millimeter Waves",

issn = "1001-9014",

publisher = "Chinese Optical Society",

number = "1",

}

TY - JOUR

T1 - 氧化铝晶体的太赫兹光谱特性研究

AU - Li, Gao Fang

AU - Xu, Yan Xia

AU - Hu, Tao

AU - Nie, Xiao Bo

AU - Bian, Zheng Lan

AU - Huang, Zhi Ming

AU - Chu, Jun Hao

PY - 2021/2

Y1 - 2021/2

N2 - The spectral characteristics of aluminium oxide (Al2O3) in broadband terahertz wave range (0.2~3.0 THz) were investigated by using terahertz time-domain spectroscopy (THz-TDS). The terahertz time-domain spectra of Al2O3 crystal at different azimuthal angles is obtained by changing the angle between the crystal optical axis and the polarization direction of THz pulse. The refractive index and absorption coefficient of o- and e-waves are calculated, and the index ellipse of Al2O3 in THz band is drawn. The experimental results indicate that Al2O3 has large birefringence and low absorption coefficient in THz, with a birefringence as high as 0.36 and an absorption coefficient lower than 5 cm-1. The phase and amplitude of THz pulse can be modulated based on the birefringence of the crystal. Al2O3 crystal can be used as "shaper" of THz pulse, which provides important reference for the application of terahertz wave in ultra-wideband and ultra-high speed communication systems.

AB - The spectral characteristics of aluminium oxide (Al2O3) in broadband terahertz wave range (0.2~3.0 THz) were investigated by using terahertz time-domain spectroscopy (THz-TDS). The terahertz time-domain spectra of Al2O3 crystal at different azimuthal angles is obtained by changing the angle between the crystal optical axis and the polarization direction of THz pulse. The refractive index and absorption coefficient of o- and e-waves are calculated, and the index ellipse of Al2O3 in THz band is drawn. The experimental results indicate that Al2O3 has large birefringence and low absorption coefficient in THz, with a birefringence as high as 0.36 and an absorption coefficient lower than 5 cm-1. The phase and amplitude of THz pulse can be modulated based on the birefringence of the crystal. Al2O3 crystal can be used as "shaper" of THz pulse, which provides important reference for the application of terahertz wave in ultra-wideband and ultra-high speed communication systems.

KW - Aluminium oxide

KW - Birefringence

KW - Pulse shaping

KW - Terahertz time-domain spectroscopy

UR - https://www.scopus.com/pages/publications/85102278101

U2 - 10.11972/j.issn.1001-9014.2021.01.007

DO - 10.11972/j.issn.1001-9014.2021.01.007

M3 - 文章

AN - SCOPUS:85102278101

SN - 1001-9014

VL - 40

SP - 38

EP - 43

JO - Hongwai Yu Haomibo Xuebao/Journal of Infrared and Millimeter Waves

JF - Hongwai Yu Haomibo Xuebao/Journal of Infrared and Millimeter Waves

IS - 1

ER -

氧化铝晶体的太赫兹光谱特性研究

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