Dr Liang Zhang

Research Fellow


Personal statement

I received the Ph.D. degree in physics from the University of Strathclyde, Glasgow, UK in 2012.


As a researcher, I have experience working on a variety of research projects including gyrotron travelling wave amplifiers, plasma filled microwave sources, microwave pulse compression and free electron lasers. I have led the development of gyro-TWAs in terms of design, computational simulation techniques and laboratory experimentation. I have carried out world-leading experiments of high power broadband mm-wave/THz amplifiers that have great potential in EPR/DNP and mm-wave wireless and satellite communications. I have successfully demonstrated a world-record 88-104GHz continuously tuneable, high power (10kW) Gyro-BWO experiment (2012), and a gyro-amplifier achieving 3.4kW with a 3dB instantaneous frequency bandwidth of at least 5.5GHz at W-band (2017).


Design, simulation, and cold test of a W-band double nonparallel staggered grating backward wave oscillator
Zhang Jin, Alfadhl Yasir, Chen Xiaodong, Zhang Liang, Cross Adrian W
IEEE Transactions on Electron Devices Vol 69, pp. 5814-5818 (2022)
Undulators and light production with the XLS-CompactLight design study
Nguyen F, Carpanese M, Petralia A, Bernhard A, Arnsberg J, Fatehi S, Gethmann J, Grohmann S, Krasch B, Schmidt T, Calvi M, Danner S, Zhang K, Thompson N, Clarke J A, Castañeda Cortés H M, Dunning D J, Hinton A, Shepherd B, Geometrante R, Kokole M, Milharcic T, Pockar J, Aksoy A, Nergiz Z, Marcos J, Perez F, Cross A W, Zhang L, Zhu D, Richter S C, Latina A, Cianchi A, Goryashko V, D’Auria G, Di Mitri S, Rochow R
Moscow University Physics Bulletin Vol 77, pp. 241-244 (2022)
Free-electron-driven vortex Smith-Purcell radiation with higher-order topological charge
Zhang Zi-Wen, Du Chao-Hai, Gao Zi-Chao, Li Fan-Hong, Zhu Juan-Feng, Zhang Liang, Cross Adrian W, Liu Pu-Kun
2022 Photonics & Electromagnetics Research Symposium (PIERS) , pp. 725-728 (2022)
Status and ongoing development of a KW-level broadband W-band gyro-TWA
Zhang Liang, Donaldson Craig R, Whyte Colin G, Cross Adrian W
2021 51st European Microwave Conference 2021 51st European Microwave Conference (EuMC), pp. 1042-1045 (2022)
Design of a 1-THz fourth-harmonic gyrotron driven by axis-encircling electron beam
Li Fan-Hong, Du Chao-Hai, Zhang Zi-Wen, Li Si-Qi, Gao Zi-Chao, Liu Pu-Kun, Ma Guo-Wu, Huang Qi-Li, Ma Hong-Ge, Zhang Liang, Cross Adrian W
IEEE Transactions on Electron Devices Vol 69, pp. 3393-3399 (2022)
Design and characterisation of a helicon apparatus for investigations of parametric instabilities in magnetised plasma
Wilson K, Selman L, Whyte C, MacInnes P, Young A, Phelps A, Cross A, Zhang L, Eliasson B, Speirs D, Robertson C, Ronald K, Cairns A, Koepke M, Bingham R, Bamford R
2022 IEEE International Conference on Plasma Science (ICOPS) (2022)

More publications

Research interests

Broadband, high power, mm-wave/terahertz gyrotron travelling wave amplifiers for next-generation magnetic resonance spectroscopy, telecommunications, security imaging and radar; Gyrotron backward wave oscillator; Conventional travelling wave amplifiers; Electron beam generation; Beam-wave interaction, Low-pressure gas discharge; Plasma filled high power microwave sources; Free electron lasers and pulsed power technologies.

Professional activities

Study of millimeter-wave undulators for compact X-ray free-electron lasers
Characteristics of pseudospark-sourced beam and its application in thz sources
Updates on the Development of MW-level Ka-band Gyroklystron
Investigation of a short-period microwave undulator
Simulation of Pseudospark Discharge and its application in Compact THz Sources
Design and simulation of a 0.37 THz gyro-TWA

More professional activities


Compact Light (XLS) H2020 INFRADEV-2016-2017 | Easton, Jack
Cross, Adrian (Principal Investigator) Robb, Gordon (Co-investigator) Zhang, Liang (Co-investigator) Easton, Jack (Research Co-investigator)
01-Jan-2020 - 01-Jan-2024
Sheet electron beam vacuum electronic devices for the generation of high power THz radiation
Cross, Adrian (Principal Investigator) He, Wenlong (Co-investigator) Phelps, Alan (Co-investigator) Zhang, Liang (Research Co-investigator)
05-Jan-2019 - 04-Jan-2021
A modular, integrated electron gun and RF cavity for radiotherapy treatment systems in developing countries (AfricanRTT)
Cross, Adrian (Principal Investigator) Zhang, Liang (Research Co-investigator)
01-Jan-2018 - 31-Jan-2019
Terahertz High-Harmonic Gyrotron Oscillator By Using Metasurface Cylindrical Cavity (Newton Advanced Fellowship - Prof Chao-Hai Du)
Cross, Adrian (Principal Investigator) Zhang, Liang (Research Co-investigator)
Dr. Liang Zhang is responsible for scientific discussion and experimental arrangement with Prof. Du for the THz high-harmonic gyrotron oscillator.
28-Jan-2018 - 27-Jan-2022
Compact Light (XLS) H2020 INFRADEV-2016-2017
Cross, Adrian (Principal Investigator) Ronald, Kevin (Co-investigator) Zhang, Liang (Research Co-investigator)
University Strathclyde is responsible for the design of high power microwave sources to drive the lineariser, as well as the exploration of next-generation exotic undulator.

Dr. Liang Zhang is leading the design of a MW-level 48 GHz gyroklystron, as well as investigating the potentials of microwave undulators.
01-Jan-2018 - 31-Jan-2020
Doctoral Training Partnership (DTP 2016-2017 University of Strathclyde) | Nix, Laurence
Cross, Adrian (Principal Investigator) Zhang, Liang (Co-investigator) Nix, Laurence (Research Co-investigator)
01-Jan-2017 - 19-Jan-2021

More projects


Technology Innovation Centre

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