Udal, A, Jaanus, M, Valušis, G et al. (3 more authors) (2017) Progress in development of the resonant tunneling diodes as promising compact sources at the THz gap bottom. In: Pereira, MF and Shulika, O, (eds.) THz for CBRN and Explosives Detection and Diagnosis (NATO Science for Peace and Security Series B: Physics and Biophysics). NATO Advanced Research Workshop on THz for CBRN and Explosives Detection and Diagnosis, 03-05 Nov 2015, Çeşme, Turkey. Springer Verlag , pp. 169-178. ISBN 978-94-024-1093-8
Abstract
In recent years remarkable progress has been made in filling the “terahertz gap” of compact sources from the “optical” side using quantum cascade lasers and difference frequency generation systems. On the “electronic” side the range up to 0.5 THz is covered by several devices like Gunn diodes, IMPATT diodes and HEMT transistors. However for the most difficult central range 0.5-2 THz, which includes frequencies for detection of explosives and several airborne threats, along with the popular semi-compact Schottky diodes based frequency multiplier systems, the resonant tunneling diodes (RTD) as micrometer-size range ultrafast electronic devices able to operate at room temperature may offer a real solution for the design of compact portable equipment. It has been predicted that frequency limit for operation of the RTDs may extend up to 3 THz if the problem of the low, microwatt-range output power could be solved. Over the last 10 years remarkable progress has been achieved in increasing the output power of RTDs by almost 2 orders of magnitude, and in extending the operation frequencies from earlier 0.7 THz range to the values near 2 THz, thus making RTDs competitive with the Schottky diode based multipliers. The chapter compares the RTDs with other compact THz sources and discusses the design approaches that have yielded remarkable increase of power and frequency of RTDs.
Metadata
Item Type: | Proceedings Paper |
---|---|
Authors/Creators: |
|
Editors: |
|
Keywords: | Terahertz; Terahertz gap; Compact source; Resonant tunneling; Resonant tunneling diode; RTD; Slot antenna |
Dates: |
|
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 NATO Science for Peace EAP.SFPP.984068 EU - European Union 633054 |
Depositing User: | Symplectic Publications |
Date Deposited: | 28 Sep 2017 15:39 |
Last Modified: | 03 Oct 2017 16:00 |
Status: | Published |
Publisher: | Springer Verlag |
Identification Number: | 10.1007/978-94-024-1093-8_20 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:121332 |