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Terahertz dynamic aperture imaging at stand-off distances using a Compressed Sensing protocol

Augustin, Sven and Jung, Peter and Frohmann, Sven and Hübers, Heinz-Wilhelm (2019) Terahertz dynamic aperture imaging at stand-off distances using a Compressed Sensing protocol. IEEE Transactions on Terahertz Science and Technology, 9 (4), pp. 364-372. IEEE - Institute of Electrical and Electronics Engineers. DOI: 10.1109/TTHZ.2019.2915640 ISSN 2156-342X

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Official URL: http://dx.doi.org/10.1109/TTHZ.2019.2915640


In this paper, results of a 0.35 THz dynamic aperture imaging approach are presented. The experiments use an optical modulation approach and a single pixel detector at a standoff imaging distance of 1 m. The optical modulation creates dynamic apertures of 5-cm diameter with 2000 individually controllable elements. An optical modulation approach is used here for the first time at a large far-field distance, for the investigation of various test targets in a field-of-view of 8 × 8 cm2. The results highlight the versatility of this modulation technique and show that this imaging paradigm is applicable even at large far-field distances. It proves the feasibility of this imaging approach for potential applications like standoff security imaging or far field THz microscopy.

Item URL in elib:https://elib.dlr.de/127416/
Document Type:Article
Title:Terahertz dynamic aperture imaging at stand-off distances using a Compressed Sensing protocol
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Augustin, Svensven.augustin (at) dlr.dehttps://orcid.org/0000-0001-6095-9940
Jung, Peterpeter.jung (at) tu-berlin.dehttps://orcid.org/0000-0001-7679-9697
Frohmann, SvenSven.Frohmann (at) dlr.deUNSPECIFIED
Hübers, Heinz-Wilhelmheinz-wilhelm.huebers (at) dlr.dehttps://orcid.org/0000-0001-8387-4560
Date:4 July 2019
Journal or Publication Title:IEEE Transactions on Terahertz Science and Technology
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.1109/TTHZ.2019.2915640
Page Range:pp. 364-372
Publisher:IEEE - Institute of Electrical and Electronics Engineers
Keywords:Computational imaging, inverse problems, spatial light modulators (SLMs), terahertz (THz) imaging
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Technology
DLR - Research area:Raumfahrt
DLR - Program:R SY - Technik für Raumfahrtsysteme
DLR - Research theme (Project):R - Vorhaben OptoRob, R - Vorhaben Optische Technologien und Anwendungen
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Optical Sensor Systems > Terahertz and Laser Spectroscopy
Deposited By: Frohmann, Sven
Deposited On:10 Jan 2020 08:51
Last Modified:15 Jan 2020 11:25

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