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Proceedings Paper

Detectors for terahertz multi-pixel coherent imaging and demonstration of real-time imaging with a 12x12-pixel CMOS array
Author(s): Alvydas Lisauskas; Sebastian Boppel; Mouloud Saphar; Viktor Krozer; Linas Minkevičius; Rimvydas Venckevičius; Dalius Seliuta; Irmantas Kašalynas; Vincas Tamošiūnas; Gintaras Valušis; Hartmut G. Roskos
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Paper Abstract

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 12×12-pixel CMOS camera in power-detection mode at 590 GHz.

Paper Details

Date Published: 15 October 2012
PDF: 9 pages
Proc. SPIE 8496, Terahertz Emitters, Receivers, and Applications III, 84960J (15 October 2012); doi: 10.1117/12.930086
Show Author Affiliations
Alvydas Lisauskas, Johann Wolfgang Goethe-Univ. Frankfurt am Main (Germany)
Sebastian Boppel, Johann Wolfgang Goethe-Univ. Frankfurt am Main (Germany)
Mouloud Saphar, Johann Wolfgang Goethe-Univ. Frankfurt am Main (Germany)
Viktor Krozer, Johann Wolfgang Goethe-Univ. Frankfurt am Main (Germany)
Linas Minkevičius, Ctr. for Physical Sciences and Technology (Lithuania)
Rimvydas Venckevičius, Ctr. for Physical Sciences and Technology (Lithuania)
Dalius Seliuta, Ctr. for Physical Sciences and Technology (Lithuania)
Irmantas Kašalynas, Ctr. for Physical Sciences and Technology (Lithuania)
Vilnius Univ. (Lithuania)
Vincas Tamošiūnas, Ctr. for Physical Sciences and Technology (Lithuania)
Vilnius Univ. (Lithuania)
Gintaras Valušis, Ctr. for Physical Sciences and Technology (Lithuania)
Vilnius Univ. (Lithuania)
Hartmut G. Roskos, Johann Wolfgang Goethe-Univ. Frankfurt am Main (Germany)


Published in SPIE Proceedings Vol. 8496:
Terahertz Emitters, Receivers, and Applications III
Manijeh Razeghi; Alexei N. Baranov; Henry O. Everitt; John M. Zavada; Tariq Manzur, Editor(s)

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