Optical and Dielectrical Properties of Opal Water Content Determination Using Terahertz Time-Domain Spectroscopy

被引：0

作者：

Gao, Chutong ^{[1
]}

Pan, Kexin ^{[2
]}

Zheng, Zhiyuan ^{[1
]}

Huang, Ren ^{[1
]}

Zhang, Tong ^{[1
]}

Hao, Lixian ^{[1
]}

Zhang, Mingrui ^{[1
]}

Qiu, Qiming ^{[1
]}

Li, Shanshan ^{[1
,3
]}

Huang, Haochong ^{[1
]}

Qiu, Kunfeng ^{[3
]}

机构：

[1] China Univ Geosci Beijing, Sch Sci, Beijing 100083, Peoples R China

[2] China Univ Geosci Beijing, Sch Mat Sci & Technol, Beijing, Peoples R China

[3] China Univ Geosci Beijing, Sch Earth Sci & Resources, Beijing, Peoples R China

来源：

APPLIED SPECTROSCOPY | 2025年 / 79卷 / 06期

基金：

中国国家自然科学基金;

关键词：

Terahertz spectroscopy; THz; opal; dielectric permittivity; effective medium theory; Debye model; LIQUID WATER; FUNDAMENTALS; ABSORPTION; CONSTANT;

D O I：

10.1177/00037028241306456

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The optical and dielectric properties of opals with different water contents were investigated using terahertz time-domain spectroscopy. The refractive indices and absorption coefficients showed different trends due to the different water contents. The effective medium theory was used to extract the intrinsic dielectric permittivity of opal from opal-polytetrafluoroethylene mixtures. The extracted dielectric permittivities were fitted using a double Debye model to analyze the microscopic relaxation mechanism.

引用

页码：1008 / 1017

页数：10

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