THz triangulation and stand-off measurement of the refractive index

被引：1

作者：

Wiegand, Christian ^{[1
,2
]}

Herrmann, Michael ^{[3
]}

Beigang, Rene ^{[1
,2
,3
]}

机构：

[1] Univ Kaiserslautern, Dept Phys, D-67663 Kaiserslautern, Germany

[2] Univ Kaiserslautern, Res Ctr OPTIMAS, D-67663 Kaiserslautern, Germany

[3] Fraunhofer Inst Phys Measurement Tech IPM, Freiburg, Germany

来源：

OPTICS EXPRESS | 2011年 / 19卷 / 11期

关键词：

LASER TRIANGULATION; TERAHERTZ; IDENTIFICATION; SPECTROSCOPY; EXPLOSIVES; SILICON;

D O I：

10.1364/OE.19.010269

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We have constructed a pulsed THz imaging system based on the triangulation method. The system is capable of stand-off measurements, especially of retrieving the refractive index in a non-tactile manner even if the thickness of the object is unknown. The distance between emitter and imaged object for the presented measurements was 1.3m. We have measured a variety of samples in order to determine the capabilities and to optimize the optical properties of the instrument. (C) 2011 Optical Society of America

引用

页码：10269 / 10277

页数：9

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