TeraHertz Planar Gunn Diodes
Lead Research Organisation:
University of Glasgow
Department Name: Electronics and Electrical Engineering
Abstract
THz technology is a very new and exciting frontier in science and engineering. A vast number of potential applications ranging from superior high resolution RADAR systems for both military and civilian use to medical diagnostic aids for treatment of bed sores, skin cancer and burns, wireless office communications and even archaeological and astronomical applications have been proposed. The medical applications are particularly exciting and are attracting much media attention, THz radiation having already been dubbed T-Rays by the pressThis project proposes the development of just such a source of THz radiation - a novel form of Planar Gunn diode. This device has already been physically realized and the prototypes have been proven to work (under a Scottish Executive Proof of Concept grant). This grant proposal seeks to develop the full potential of the device, exploring and exploiting its unusual geometry which makes it ideally suited to integration in MMIC circuitry in contrast to conventional Gunn diodes, increasing its power and developing the technology to the point where it will be taken up by British industry.
Publications
Glover J
(2015)
Micro-coolers fabricated as a component in an integrated circuit
in Semiconductor Science and Technology
Ismaeel Maricar M
(2013)
Planar gunn diode characterisation and resonator elements to realise oscillator circuits
Khalid A
(2012)
Simple e-beam air-bridge technology for mm-wave applications
in Microelectronic Engineering
Khalid A
(2013)
A 218-GHz second-harmonic multiquantum well GaAs-based planar Gunn diodes
in Microwave and Optical Technology Letters
Khalid A
(2013)
$\hbox{In}_{0.53}\hbox{Ga}_{0.47}\hbox{As}$ Planar Gunn Diodes Operating at a Fundamental Frequency of 164 GHz
in IEEE Electron Device Letters
Khalid A
(2014)
Terahertz oscillations in an In0.53Ga0.47As submicron planar Gunn diode
in Journal of Applied Physics
Li C
(2012)
A Wideband CPW Ring Power Combiner With Low Insertion Loss and High Port Isolation
in IEEE Microwave and Wireless Components Letters
Li C
(2011)
Design, fabrication and characterization of In0.23Ga0.77As-channel planar Gunn diodes for millimeter wave applications
in Solid-State Electronics
Li C
(2011)
Investigation of Loading Effect on Power Performance for Planar Gunn Diodes Using Load-Pull Measurement Technique
in IEEE Microwave and Wireless Components Letters
Li C
(2011)
Enhancement of power and frequency in Planar Gunn diodes by introducing extra delta-doping layers
in Microwave and Optical Technology Letters
Maricar M
(2015)
Experimentally estimated dead space for GaAs and InP based planar Gunn diodes
in Semiconductor Science and Technology
Maricar M
(2015)
Improving the quality factor of the coplanar waveguide resonator
in Microwave and Optical Technology Letters
Maricar M
(2016)
Extraction of second harmonic from an InP based planar Gunn diode using diamond resonator for milli-metric wave frequencies
in Solid-State Electronics
Maricar, M. I.
(2015)
Design,characterization and fabrication of an In0.53Ga0.47As planar Gunn diode operating at millimeter waves
in Journal of Terahertz Science and Electronic Information Technology
Saha SC
(2012)
Application of terahertz spectroscopy to the characterization of biological samples using birefringence silicon grating.
in Journal of biomedical optics
Stephen A
(2014)
Micro-cooler enhancements by barrier interface analysis
in AIP Advances
Stephen A
(2013)
Improvements in thermionic cooling through engineering of the heterostructure interface using Monte Carlo simulations
in Journal of Applied Physics
| Description | Planar Gunn diode oscillators working at over 300 GHz were successfully made and demonstrated. |
| Exploitation Route | The devices provide a potential route to small compact and efficient terahertz sources for imaging and sensing. |
| Sectors | Aerospace, Defence and Marine,Electronics |
| Description | The work led to a collaboration with NPL, supported by TeraNET. We are now working with NPL on development of a collaborative project. |
| Sector | Electronics |
| Impact Types | Economic |
| Description | University of Glasgow |
| Amount | £38,000 (GBP) |
| Funding ID | KTA awards |
| Organisation | University of Glasgow |
| Sector | Academic/University |
| Country | United Kingdom |
| Start | |