Distinguishing octane grades in gasoline using terahertz metamaterials

被引：21

作者：

Li, J. ^{[4
]}

Tian, Z. ^{[1
,2
,3
]}

Chen, Y. ^{[1
,2
,3
]}

Cao, W. ^{[1
,2
,3
]}

Zeng, Z. ^{[4
]}

机构：

[1] Tianjin Univ, Ctr Terahertz Waves, Tianjin 300072, Peoples R China

[2] Tianjin Univ, Coll Precis Instrument & Optoelect Engn, Tianjin 300072, Peoples R China

[3] Minist Educ China, Key Lab Optoelect Informat Technol, Tianjin 300072, Peoples R China

[4] Tianjin Univ, State Key Lab Precis Measuring Technol & Instrume, Tianjin 300072, Peoples R China

来源：

APPLIED OPTICS | 2012年 / 51卷 / 16期

基金：

中国国家自然科学基金;

关键词：

NUMBERS;

D O I：

10.1364/AO.51.003258

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Distinguishing octane numbers of commercial gasoline is experimentally demonstrated by use of single split-ring resonator metamaterials functioning at terahertz frequencies. The differences in frequency-dependent absorption coefficients and refractive indices of various grades of gasoline lead to a modification in the surrounding dielectric environment and consequently the resonance properties of the planar metamaterials. This consequently enables a distinct frequency shift in the inductive-capacitive electric dipolar resonances. This paper reveals that such metamaterial arrays, as highly sensitive chemical sensors, have promising potential in petroleum industrial applications.

引用

页码：3258 / 3262

页数：5

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