Joint, F, Gay, G, Vigneron, PB et al. (9 more authors) (2019) Highly Sensitive and Compact THz heterodyne receiver based on HEB and QCL at 2.7 THz. In: 2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz). 44th International Conference on Infrared, Millimeter, and Terahertz Waves, 01 Sep - 06 Nov 2019, Paris, France. IEEE ISBN 9781538682852
Abstract
We present the development of a highly sensitive and compact HEB/QCL heterodyne detection system. The HEB mixer is a NbN nano-bridge mounted in an integrated lens-antenna configuration. The local oscillator is a low power consumption and low beam divergence 3 rd order distributed feedback quantum cascade laser with single mode emission at the target frequency of 2.7 THz. A new quasi-optical coupling scheme between the mixer and the local oscillator has been developed that allows the removal of the beam splitter and therefore a better transmission of the RF signal and a more compact detection system. The lowest uncorrected double side band receiver noise temperature of this system is about 880 K.
Metadata
Item Type: | Proceedings Paper |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2019, IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. |
Keywords: | Quantum cascade lasers; Receivers; Mixers; Couplings; Lenses; Local oscillators; Laser beams |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Electronic & Electrical Engineering (Leeds) > Pollard Institute (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 26 Nov 2019 12:02 |
Last Modified: | 26 Nov 2019 12:09 |
Status: | Published |
Publisher: | IEEE |
Identification Number: | 10.1109/IRMMW-THz.2019.8874310 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:153852 |