Detectors for terahertz multi-pixel coherent imaging and demonstration of real-time imaging with a 12x12-pixel CMOS array

被引：9

作者：

Lisauskas, Alvydas ^{[1
]}

Boppel, Sebastian ^{[1
]}

Saphar, Mouloud ^{[1
]}

Krozer, Viktor ^{[1
]}

Minkevicius, Linas ^{[2
]}

Venckevicius, Rimvydas ^{[2
]}

Seliuta, Dalius ^{[2
]}

Kasalynas, Irmantas ^{[2
,3
]}

Tamosiunas, Vincas ^{[2
,3
]}

Valusis, Gintaras ^{[2
,3
]}

Roskos, Hartmut G. ^{[1
]}

机构：

[1] Goethe Univ Frankfurt, Inst Phys, Max von Laue Str 1, D-60438 Frankfurt, Germany

[2] Ctr Phys Sci & Technol, LT-01108 Vilnius, Lithuania

[3] Vilnius Univ, Semicond Phys Dept, Fac Phys, Vilnius, Lithuania

来源：

TERAHERTZ EMITTERS, RECEIVERS, AND APPLICATIONS III | 2012年 / 8496卷

关键词：

field-effect transistors; bow-tie diodes; detectors arrays; heterodyne imaging; real-time camera; THz-continuous-wave imaging; RADIATION;

D O I：

10.1117/12.930086

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present recent developments of two kinds of compact room-temperature detectors for terahertz radiation. These are asymmetrically-shaped bow-tie diodes, and field-effect transistors with sub-micrometer channel lengths. Both kinds of detectors exhibit fast response times which allow operating them as mixers, moreover they are suitable for the fabrication of large multi-pixel arrays. Here, we provide data on the experimental performance of detector arrays and show their applicability in coherent terahertz imaging systems. In addition, we demonstrate real-time operation of a 12x12-pixel CMOS camera in power-detection mode at 590 GHz.

引用

页数：9

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