Rui, D, Valavanis, A, Han, Y et al. (11 more authors) (2015) Waveguide-integrated terahertz-frequency quantum cascade lasers for detection of trace-gas species. In: 2015 40th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz). 40th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz 2015), 23-28 Aug 2015, Hong Kong. IEEE , pp. 1-2. ISBN 978-1-4799-8272-1
Abstract
We demonstrate high-performance THz QCLs lasing at 2.2, 2.53, 3.5 and 4.7 THz, which target absorption lines of water, methane, hydroxyl and atomic oxygen respectively. Reliable single-mode targeting of gas species is obtained through the use of a photonic lattice design. A highly reproducible micro-machined waveguide block yields narrow beam-divergence and enables future integration of a complete THz heterodyne system including local-oscillator, mixer, and feed-horn.
Metadata
Item Type: | Proceedings Paper |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2015, IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, 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 components of this work in other works. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Laser beams; Lattices; Optical device fabrication; Optical waveguides; Photonics; Quantum cascade lasers; Robustness |
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 NERC NE/L01243X/1 UK Space Agency RP10G0327C11/B11 Royal Society WM110032 UK Space Agency RP10G0327D13 |
Depositing User: | Symplectic Publications |
Date Deposited: | 16 Sep 2015 15:38 |
Last Modified: | 17 Jan 2018 18:56 |
Published Version: | http://dx.doi.org/10.1109/IRMMW-THz.2015.7327559 |
Status: | Published |
Publisher: | IEEE |
Identification Number: | 10.1109/IRMMW-THz.2015.7327559 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:89947 |