InGaAs-based bow-tie diode for spectroscopic terahertz imaging

被引：45

作者：

Kasalynas, I. ^{[1
]}

Venckevicius, R. ^{[1
]}

Seliuta, D. ^{[1
]}

Grigelionis, I. ^{[1
]}

Valusis, G. ^{[1
]}

机构：

[1] Ctr Phys Sci & Technol, Inst Semicond Phys, LT-01108 Vilnius, Lithuania

来源：

JOURNAL OF APPLIED PHYSICS | 2011年 / 110卷 / 11期

关键词：

TIME-DOMAIN SPECTROSCOPY; ROOM-TEMPERATURE; EXPLOSIVES; ARRAY;

D O I：

10.1063/1.3658017

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Suitability of InGaAs-based bow-tie diodes for a spectroscopic terahertz imaging is demonstrated by inspecting explosive simulators packed in a thick plastic container. The transmission images were obtained within the frequency range of 0.58-2.52 THz at room temperature using optimized bow-tie diode connection scheme. Content of sucrose and tartaric acid in the test samples was discriminated. Measured absorbance was found to be in a good correlation with Fourier spectroscopy data. Performance of room temperature THz imaging using the bow-tie diode was compared versus a commercial pyro-electric sensor. (C) 2011 American Institute of Physics. [doi:10.1063/1.3658017]

引用

页数：6

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