Eisele, H (2015) Negative differential resistance devices for generation of terahertz radiation. In: Proceedings of SPIE Optics and Photonics 2015: Terahertz Emitters, Receivers, and Applications VI. SPIE Optics and Photonics 2015, 09-13 Aug 2015, San Diego. SPIE ISBN 9781628417517
Abstract
This paper discusses the principles of operation, state of the art, and future potential of active two-terminal devices for generation of low-noise, continuous-wave terahertz radiation. These devices use transit-time, transferred-electron, and quantum-mechanical effects (or a combination of them) to create a negative differential resistance (NDR) at the frequency of interest. Many different types of NDR devices have been proposed since the earliest days of semiconductor devices and studied in detailed simulations for their power generation potential, but have yet to be demonstrated experimentally. The paper focuses on NDR devices that not only yielded significant output powers at millimeter waves frequencies and higher, but also have the strong potential of generating radiation at terahertz frequencies. Examples of such NDR devices are resonant tunneling diodes (RTDs), superlattice electronic devices (SLEDs), and InP Gunn devices. Examples of their state-of-the-art results are output powers of 0.2 mW at 443 GHz and 5 μW at 1.53 THz from InGaAs/AlAs double barrier RTDs on InP substrate; 5.0 mW at 123.3 GHz, 1.1 mW at 155.1 GHz, and 0.52 mW at 252.8 GHz from GaAs/AlAs superlattice electronic devices on GaAs substrate; and 330 μW at 412 GHz, 86 μW at 479 GHz, and 18 μW at 502 GHz from InP Gunn devices.
Metadata
Item Type: | Proceedings Paper |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | (c) 2015, SPIE. This is an author produced version of a paper published in Proceedings of SPIE Optics and Photonics 2015: Terahertz Emitters, Receivers, and Applications VI. |
Keywords: | Gunn devices; heterojunction; millimeter-wave devices; milimeter-wave generation; milimeter-wave oscillators; negative differential resistance; oscillator noise; phase noise; resonant-tunneling diodes; submillimeter-wave devices; submillimeter-wave generation; submillimeter-wave oscillators; superlattice; superlattice electronic device; transferred-electron effect; transit-time devices; tunelling |
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 US Army TACOM W911NF-07-1-0445 US Army Research Office W911NF-14-1-0614 |
Depositing User: | Symplectic Publications |
Date Deposited: | 18 Nov 2015 15:16 |
Last Modified: | 18 Nov 2015 15:16 |
Published Version: | http://dx.doi.org/10.1117/12.2187352 |
Status: | Published |
Publisher: | SPIE |
Identification Number: | 10.1117/12.2187352 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:91593 |