Assessment of cameras for continuous wave sub-terahertz imaging
File(s)Assessment of cameras for CW sub-thz imaging.pdf (691.29 KB)
Accepted version
Author(s)
Gorodetsky, Andrei A
Freer, Suzanna
Navarro-Cía, Miguel
Type
Conference Paper
Abstract
In this contribution, we present the direct comparison between Ophir Pyrocam IV and Terasense Tera-1024 cameras used for imaging of terahertz (THz) and sub-THz signals. We compare general properties, such as frequency dependent and polarisation dependent sensitivity, angle dependent sensitivity essential for holographic and noncollinear interferometric measurements, and draw a conclusion about the most suitable camera for the discussed imaging approaches. Both cameras show acceptable performance and sensitivity at imaging both 0.14 THz and 0.3 THz signals. The Terasense camera, expectedly, shows stronger polarisation dependent properties, however, is significantly more angle independent, showing an acceptable performance at all tested incident angles up to 50 degrees. At the same time, although the angle dependence is stronger for the Ophir camera, it has smaller pixel pitch and more extended post-processing features, thus making it somewhat better suited for noncollinear interferometric and holographic sub THz imaging.
Date Issued
2020-08-20
Date Acceptance
2020-08-01
Citation
Terahertz Emitters, Receivers, and Applications XI, 2020, pp.1-9
ISBN
9781510638044
Publisher
SPIE
Start Page
1
End Page
9
Journal / Book Title
Terahertz Emitters, Receivers, and Applications XI
Copyright Statement
© 2020 SPIE
Identifier
https://www.spiedigitallibrary.org/conference-proceedings-of-spie/11499/2568516/Assessment-of-cameras-for-continuous-wave-sub-terahertz-imaging/10.1117/12.2568516.full?SSO=1
Source
Terahertz Emitters, Receivers, and Applications XI
Publication Status
Published
Start Date
2020-08-24
Finish Date
2020-08-28
Date Publish Online
2020-08-20