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Field-Effect Transistor Based Detectors for Power Monitoring of THz Quantum Cascade Lasers

Zdanevicius, Justinias and Cibiraite, Dovile and Kestutis, Ikamas and Bauer, Maris and Matukas, Jonas and Lisauskas, Alvydas and Richter, Heiko and Hagelschuer, Till and Krozer, Viktor and Hübers, Heinz-Wilhelm and Roskos, Hartmut (2018) Field-Effect Transistor Based Detectors for Power Monitoring of THz Quantum Cascade Lasers. IEEE Transactions on Terahertz Science and Technology, 8 (6), pp. 613-621. IEEE - Institute of Electrical and Electronics Engineers. doi: 10.1109/TTHZ.2018.2871360. ISSN 2156-342X.

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Official URL: http://ieeexplore.ieee.org


We report on circuit simulation, modeling, and characterization of field-effect transistor based terahertz (THz) detectors (TeraFETs) with integrated patch antennas for discrete frequencies from 1.3 to 5.7 THz. The devices have been fabricated using a standard 90-nm CMOS technology. Here, we focus in particular on a device showing the highest sensitivity to 4.75-THz radiation and its prospect to be employed for power mmonitoring of a THz quantum cascade laser used in a heterodyne spectrometer GREAT (German REceiver for Astronomy at Terahertz frequencies). We show that a distributed transmission line based detector model can predict the detector’s performance better than a device model provided by the manufacturer. The integrated patch antenna of the TeraFET designed for 4.75 THz has an area of 13 × 13 µm2 and a distance of 2.2 µm to the ground plane. The modeled radiation efficiency at the target frequency is 76% with a Maximum directivity of 5.5, resulting in an effective area of 1750 µm2. The detector exhibits an area-normalized minimal noise-equivalent power of 404 pW/√Hz and a maximum responsivity of 75 V/W. These values represent the state of the art for electronic detectors operating at room-temperature and in this frequency range.

Item URL in elib:https://elib.dlr.de/124988/
Document Type:Article
Title:Field-Effect Transistor Based Detectors for Power Monitoring of THz Quantum Cascade Lasers
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Zdanevicius, JustiniasVilnius UniversityUNSPECIFIED
Cibiraite, Dovilecibiraite (at) physik.uni-frankfurt.deUNSPECIFIED
Kestutis, Ikamaskestutis.ikamas (at) ff.vu.ltUNSPECIFIED
Bauer, Marismaris.bauer (at) itwm.fraunhofer.deUNSPECIFIED
Matukas, Jonasjonas.matukas (at) ff.vu.ltUNSPECIFIED
Lisauskas, Alvydaslisauskas (at) physik.uni-frankfurt.deUNSPECIFIED
Richter, HeikoHeiko.Richter (at) dlr.deUNSPECIFIED
Hagelschuer, TillTill.Hagelschuer (at) dlr.deUNSPECIFIED
Krozer, ViktorGoethe-University FrankfurtUNSPECIFIED
Hübers, Heinz-Wilhelmheinz-wilhelm.huebers (at) dlr.deUNSPECIFIED
Roskos, Hartmutroskos (at) physik.uni-frankfurt.deUNSPECIFIED
Date:November 2018
Journal or Publication Title:IEEE Transactions on Terahertz Science and Technology
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.1109/TTHZ.2018.2871360
Page Range:pp. 613-621
Publisher:IEEE - Institute of Electrical and Electronics Engineers
Keywords:plasmonic detection, terahertz, Quantum cascade laser (QCL)
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:other
DLR - Research area:Raumfahrt
DLR - Program:R - no assignment
DLR - Research theme (Project):R - no assignment
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Optical Sensor Systems > Terahertz and Laser Spectroscopy
Deposited By: Richter, Dr.rer.nat. Heiko
Deposited On:14 Dec 2018 08:48
Last Modified:06 Sep 2019 15:23

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