Fast active THz camera with range detection by frequency modulation

Author

Weg, C. Am ; von Spiegel, W. ; Hils, B. ; Löffler, T. ; Henneberger, R. ; Zimmermann, R. ; Roskos, H.G.

Author_Institution

Phys. Inst., Johann Wolfgang Goethe Univ., Frankfurt

fYear

2008

fDate

15-19 Sept. 2008

Firstpage

1

Lastpage

3

Abstract

We report on the realization of an active fully electronic THz camera operating at 645 GHz and room temperature. It currently acquires images with about 9000 pixels in 10 seconds. Each pixel contains the amplitude as well as the phase information of the reflected THz signal. Frequency modulation allows to select a specific working distance and to suppress spurious reflections. The typical image size is in the order of hundreds of cm².

Keywords

cameras; frequency modulation; image sensors; microwave photonics; optical modulation; submillimetre wave imaging; frequency 645 GHz; frequency modulation; fully electronic camera; phase information; range detection; room temperature operation; spurious reflection suppression; temperature 293 K to 298 K; terahertz camera; Cameras; Detectors; Frequency modulation; Lighting; Object detection; Optical interferometry; Optical scattering; Phase detection; Radar detection; Telescopes;

fLanguage

English

Publisher

ieee

Conference_Titel

Infrared, Millimeter and Terahertz Waves, 2008. IRMMW-THz 2008. 33rd International Conference on

Conference_Location

Pasadena, CA

Print_ISBN

978-1-4244-2119-0

Electronic_ISBN

978-1-4244-2120-6

Type

conf

DOI

10.1109/ICIMW.2008.4665464

Filename

4665464