Demonstration of large field of view fast scanning based on a real-time uncooled antenna & cavity coupled bolometer array camera

Author

Simoens, F. ; Lalanne-Dera, J.L. ; Martin, Sebastien ; Pocas, S. ; Gidon, S. ; Rabaud, W. ; Meilhan, J.

Author_Institution

LETI, Univ. Grenoble Alpes, Grenoble, France

fYear

2014

fDate

14-19 Sept. 2014

Firstpage

1

Lastpage

2

Abstract

Real-life applications of terahertz (THz) systems often require fast imaging of large field of view of opaque scenes. Such features have been demonstrated by the development of a complete reflection active THz imaging system that combines QCLs as sources and antenna & cavity coupled micro-bolometer as THz video camera. While better than 5 mm resolution images of 40×60 mm² illuminated surfaces are acquired in real-time, a rotating planar mirror provides fast scanning of large areas, e.g. 20×30 cm² in less than 10 seconds. This paper gives an overview of the developed system and video demonstrations.

Keywords

bolometers; cavity resonators; image resolution; planar antenna arrays; quantum cascade lasers; reflector antennas; scanning antennas; submillimetre wave antennas; terahertz wave imaging; video cameras; QCL; THz imaging system; cavity coupled bolometer array camera; cavity coupled microbolometer; image resolution; large field of view fast scanning demonstration; opaque scene imaging; quantum cascade laser; real-time uncooled antenna; rotating planar mirror; terahertz system; video camera; Cameras; Mirrors; Optical imaging; Optical surface waves; Quantum cascade lasers; Real-time systems;

fLanguage

English

Publisher

ieee

Conference_Titel

Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2014 39th International Conference on

Conference_Location

Tucson, AZ

Type

conf

DOI

10.1109/IRMMW-THz.2014.6956068

Filename

6956068