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

Alvydas Lisauskas; Sebastian Boppel; Mouloud Saphar; Viktor Krozer; Linas Minkevičius; Rimvydas Venckevičius; Dalius Seliuta; Irmantas Kašalynas; Vincas Tamošiūnas; Gintaras Valušis; Hartmut G. Roskos

doi:10.1117/12.930086

15 October 2012 Detectors for terahertz multi-pixel coherent imaging and demonstration of real-time imaging with a 12x12-pixel CMOS array

Alvydas Lisauskas, Sebastian Boppel, Mouloud Saphar, Viktor Krozer, Linas Minkevičius, Rimvydas Venckevičius, Dalius Seliuta, Irmantas Kašalynas, Vincas Tamošiūnas, Gintaras Valušis, Hartmut G. Roskos

Author Affiliations +

Proceedings Volume 8496, Terahertz Emitters, Receivers, and Applications III; 84960J (2012) https://doi.org/10.1117/12.930086
Event: SPIE Optical Engineering + Applications, 2012, San Diego, California, United States

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.

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Alvydas Lisauskas, Sebastian Boppel, Mouloud Saphar, Viktor Krozer, Linas Minkevičius, Rimvydas Venckevičius, Dalius Seliuta, Irmantas Kašalynas, Vincas Tamošiūnas, Gintaras Valušis, and Hartmut G. Roskos "Detectors for terahertz multi-pixel coherent imaging and demonstration of real-time imaging with a 12x12-pixel CMOS array", Proc. SPIE 8496, Terahertz Emitters, Receivers, and Applications III, 84960J (15 October 2012); https://doi.org/10.1117/12.930086

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