Portable real-time THz imaging setup based on QC lasers

2012 ◽  
Author(s):  
Christopher Bonzon ◽  
Giacomo Scalari ◽  
Maria I. Amanti ◽  
Fabrizio Castellano ◽  
Dana Turcinkova ◽  
...  
Keyword(s):  
Sensors ◽  
2016 ◽  
Vol 16 (2) ◽  
pp. 221 ◽  
Author(s):  
Erwin Hack ◽  
Lorenzo Valzania ◽  
Gregory Gäumann ◽  
Mostafa Shalaby ◽  
Christoph Hauri ◽  
...  

Author(s):  
Nathalie Blanchard ◽  
Michel Doucet ◽  
Melanie Leclerc ◽  
Martin Otis ◽  
Marc Terroux ◽  
...  
Keyword(s):  

2021 ◽  
Vol 118 (23) ◽  
pp. 230501
Author(s):  
H. Lindley-Hatcher ◽  
R. I. Stantchev ◽  
X. Chen ◽  
A. I. Hernandez-Serrano ◽  
J. Hardwicke ◽  
...  

Author(s):  
Patrick F. Tekavec ◽  
Vladimir G. Kozlov ◽  
Ian McNee ◽  
Yun-Shik Lee ◽  
Konstanin Vodopyanov

2008 ◽  
Vol 18 (04) ◽  
pp. 983-992 ◽  
Author(s):  
Q. HU

We report our development of terahertz (THz) quantum-cascade lasers with record performance. Using those high-power lasers as the illumination sources and a focal-plane array camera, we are able to perform real-time THz imaging at video rate.


Sensors ◽  
2021 ◽  
Vol 21 (11) ◽  
pp. 3757
Author(s):  
Peter Zolliker ◽  
Mostafa Shalaby ◽  
Elisa Söllinger ◽  
Elena Mavrona ◽  
Erwin Hack

We present a real-time THz imaging method using a commercial fiber-coupled photo conductive antenna as the THz source and an uncooled microbolometer camera for detection. This new combination of state-of-the-art components is very adaptable due to its compact and uncooled radiation source, whose fiber coupling allows for a flexible placement. Using a camera with high sensitivity renders real-time imaging possible. As a proof-of-concept, the beam shape of a THz Time Domain Spectrometer was measured. We demonstrate real time imaging at nine frames per second and show its potential for practical applications in transmission geometry covering both material science and security tasks. The results suggest that hidden items, complex structures and the moisture content of (biological) materials can be resolved. We discuss the limits of the current setup, possible improvements and potential (industrial) applications, and we outline the feasibility of imaging in reflection geometry or extending it to multi-spectral imaging using band pass filters.


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