Mengxun Bai
London
Summary
Research Fellow at University College London with a PhD in Electrical and Electronic Engineering and strong hands-on experience in device characterisation, modelling, and laboratory-based experimentation. Proficient in Python and MATLAB, with practical understanding of radiative processes, high-speed signal analysis, and platform development. Highly familiar with cleanroom protocols, QA concepts, and scientific collaboration. Eager to transition into radiotherapy modelling research and contribute to pre-clinical scientific discovery.
Overview
1
1
year of professional experience
9
9
years of post-secondary education
Work history
Research fellow
University College London
London, UK
04.2024 - Current
- Developed experimental platforms for optoelectronic device testing, including both optical and high-speed electrical domains.
- Conducted Python-based automation of test procedures and signal processing workflows.
- Simulated photodiode and avalanche detector response under radiative and high-field conditions.
- Led regular testbed calibration, data validation and fault resolution – concepts transferable to radiotherapy QA.
- Collaborated across simulation, fabrication and measurement teams within EPSRC-funded research.
Research assistant
University College London
London, UK
03.2024 - 04.2024
Education
Doctor of Philosophy - Simulation study of carrier transport of III-V Nitride and related heterojunction structures
University of Bristol
Bristol, BST 11.2019 - 04.2024
Master of Science - Advanced Microelectronics Systems Engineering
University of Bristol
Bristol, BST 09.2018 - 09.2019
Bachelor of Science - Electrical and Electronic Engineering
Tianjin Univeristy
07.2014 - 06.2018
Skills
- Radiotherapy & Optical Physics
- Built custom optical and electrical characterisation platforms for optoelectronic detectors
- Experience in high-speed frequency-domain measurement and bandwidth/response modelling
- Understanding of radiation-matter interaction through APD simulation and VCSEL testing - Programming & Modelling
- Python, MATLAB (data analysis, signal processing, image analysis)
- Device simulation with Silvaco ATLAS, Lumerical MODE, COMSOL
- GDS automation and lab integration with Python scripting
- Lab & QA Experience
- Wafer-level probing and repeatable test execution
- Cleanroom processes including PECVD, ICP/RIE, sputtering, lithography
- Understanding of experimental QA, data consistency, and platform calibration - Project Integration
- Contributed to multi-institutional EPSRC projects; coordinated simulation, fabrication, and testing tasks
- Scientific writing and conference presentations in optics and electronics
Personal Information
Languages
English
Fluent
Chinese (Mandarin)
Native
Accomplishments
-Main Published Journal
A Modelling study of Electron transport in GaN/AlGaN superlattices using Monte
Carlo simulation https://doi.org/10.1002/pssb.202300384
A Modelling study of hole transport in GaN/AlGaN superlattices https://doi.org
/10.1038/s41598-023-4345-9
Modelling and optimization of Ge/GaAs uni-travelling carrier photodiodes
https://doi.org/10.1038/s41598-025-93960-z
Antiphase boundary-free III–V materials epitaxially grown on on-axis silicon
(001) substrates by ultra-thin silicon buffer https://doi.org/10.1063/5.0259915
Numerical simulation of optimization structure in Ge/GaAs avalanche photodiode
(underview)
InP Quantum Dots Lasers Operating at 2um (underwriting)
-Conference
SIOE 2022, Presentation, Cardiff
UK Semiconductors 2022, Poster, Sheffield
SIOE 2023, Presentation, Cardiff
ELSE 2023 Presentation, Glasgow
UKNC 2024, Presentation, Glasgow
META 2024, Presentation, Japan
Timeline
Research fellow
University College London
04.2024 - Current
Research assistant
University College London
03.2024 - 04.2024
Doctor of Philosophy - Simulation study of carrier transport of III-V Nitride and related heterojunction structures
University of Bristol
11.2019 - 04.2024
Master of Science - Advanced Microelectronics Systems Engineering
University of Bristol
09.2018 - 09.2019
Bachelor of Science - Electrical and Electronic Engineering
Tianjin Univeristy
07.2014 - 06.2018
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