Nuttall, E orcid.org/0000-0002-1338-8732, Han, Y, Pardo, D et al. (11 more authors) (2023) Waveguide integration of a > 4.7-THz quantum-cascade laser. Electronics Letters, 59 (2). ISSN 0013-5194
Abstract
Waveguide integration of terahertz quantum cascade lasers (THzQCLs) is demonstrated at frequencies above 4.7 THz. A precision micromachining technique, followed by diamond-turning and electroless-plating has been used to manufacture hollow rectangular waveguides with integrated diagonal feedhorns. It is shown that surface roughness at the≈1μm level is achieved, enabling outcoupling of radiation in the4.75–5.05 THz band, with a divergence angle of<5◦along the plane of the QCLs substrate.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2022 The Authors. Electronics Letters published by John Wiley & Sons Ltd on behalf of The Institution of Engineering and Technology. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
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) |
Funding Information: | Funder Grant number MRC (Medical Research Council) MR/S016929/1. Royal Society WM150029 EPSRC (Engineering and Physical Sciences Research Council) EP/P021859/1 UK Space Agency Not Known Centre for Earth Observation Instrumentation Not Known |
Depositing User: | Symplectic Publications |
Date Deposited: | 13 Jan 2023 15:14 |
Last Modified: | 25 Jun 2023 23:11 |
Status: | Published |
Publisher: | Wiley |
Identification Number: | 10.1049/ell2.12703 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:194383 |