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Fast Terahertz Computed-Tomography Imaging With a Quantum-Cascade Laser and a Scanning Mirror

Rothbart, Nick and Richter, Heiko and Wienold, Martin and Schrottke, Lutz and Grahn, H. T. and Hübers, Heinz-Wilhelm (2013) Fast Terahertz Computed-Tomography Imaging With a Quantum-Cascade Laser and a Scanning Mirror. IRMMW 2013, 01.-06. Sep. 2013, Mainz, Deutschland.

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Abstract

A terahertz transmission imaging system based on a quantum-cascade laser (QCL), a fast scanning mirror, and a sensitive Ge:Ga detector is demonstrated. In order to reduce artifacts, special care was taken on the optics and the conversion of the measured data into the image. Images with a diameter of approximately 40 mm and a signal-to-noise ratio of up to 28 dB were obtained within 1.1 s. The system was used to record three dimensional images of objects in an ellipsoidal volume with axes of approximately 40 mm by computed tomography within 87 s. In addition to the Ge:Ga detector, a more compact pyroelectric device was also used for detection.

Item URL in elib:https://elib.dlr.de/84815/
Document Type:Conference or Workshop Item (Speech)
Title:Fast Terahertz Computed-Tomography Imaging With a Quantum-Cascade Laser and a Scanning Mirror
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Rothbart, Nicknick.rothbart (at) dlr.deUNSPECIFIED
Richter, HeikoHeiko.Richter (at) dlr.deUNSPECIFIED
Wienold, MartinPDIUNSPECIFIED
Schrottke, LutzPDIUNSPECIFIED
Grahn, H. T.PDIUNSPECIFIED
Hübers, Heinz-WilhelmHeinz-Wilhelm.Huebers (at) dlr.deUNSPECIFIED
Date:September 2013
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:THz, terahertz, QCL, quantum-cascade laser, imaging system, computed-tomography
Event Title:IRMMW 2013
Event Location:Mainz, Deutschland
Event Type:international Conference
Event Dates:01.-06. Sep. 2013
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Traffic Management (old)
DLR - Research area:Transport
DLR - Program:V VM - Verkehrsmanagement
DLR - Research theme (Project):V - FAMOUS 2 (old)
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Experimentelle Planetenphysik
Deposited By: Eichholz, René
Deposited On:13 Nov 2013 14:12
Last Modified:31 Jul 2019 19:42

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