Terahertz imaging system with resonant tunneling diodes

被引：54

作者：

Miyamoto, Tomoyuki ^{[1
]}

Yamaguchi, Atsushi ^{[1
]}

Mukai, Toshikazu ^{[2
]}

机构：

[1] Pioneer Corp, Kofu, Yamanashi 4000053, Japan

[2] ROHM Co Ltd, Kyoto 6158585, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS | 2016年 / 55卷 / 03期

关键词：

SPECTROSCOPY; GHZ; GENERATION; RADIATION; THZ; COMMUNICATION; OSCILLATIONS; DEVICES; SILICON; SERIES;

D O I：

10.7567/JJAP.55.032201

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report a feasibility study of a terahertz imaging system with resonant tunneling diodes (RTDs) that oscillate at 0.30 THz. A pair of RTDs acted as an emitter and a detector in the system. Terahertz reflection images of opaque samples were acquired with our RTD imaging system. A spatial resolution of 1 mm, which is equal to the wavelength of the RTD emitter, was achieved. The signal-to-noise ratio (SNR) of the reflection image was improved by 6 dB by using polarization optics that reduced interference effects. Additionally, the coherence of the RTD enabled a depth resolution of less than 3 mu m to be achieved by an interferometric technique. Thus, RTDs are an attractive candidate for use in small THz imaging systems. (C) 2016 The Japan Society of Applied Physics

引用

页数：6

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