Wang, F, Kundu, I, Li, L et al. (7 more authors) (2015) Far-field engineering of metal -metal terahertz quantum cascade lasers with integrated horn antennas. In: 2015 40th International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz). International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 23-28 Aug 2015, Hong Kong. IEEE ISBN 9781479982721
Abstract
The far-field of metal-metal terahertz quantum cascade lasers is greatly improved through integrated and stable planar horn antennas on top of the QCL ridge. The antenna structures introduce a gradual change in the high modal confinement of metal-metal waveguides and permit an improved far-field, showing a five times increase in the emitted output power. The two dimensional far-field patterns are measured at 77K and compared to electromagnetic simulations. The influence of parasitic high order transverse modes are restricted through the engineering of antenna structure (ridge and antenna width) to couple out the fundamental mode only.
Metadata
Item Type: | Proceedings Paper |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2015 IEEE. This is an author-produced version of a paper published in 2015 40th International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz). Uploaded in accordance with the publisher's self archiving policy. |
Keywords: | Antenna measurements; Broadband antennas; Broadband communication; Horn antennas; Power generation; Quantum cascade lasers; Semiconductor lasers; Terahertz; Time domain spectroscopy |
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: | 21 Sep 2015 09:26 |
Last Modified: | 25 Oct 2016 05:44 |
Published Version: | https://dx.doi.org/10.1109/IRMMW-THz.2015.7327479 |
Status: | Published |
Publisher: | IEEE |
Identification Number: | 10.1109/IRMMW-THz.2015.7327479 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:87405 |