Dr Marsden completed his PhD in semiconductor and laser physics in quantum-confined structures at the University of Southampton in 2001. His thesis work looked at the electron-electron spin interactions in narrow gap III-V semiconductors with quantum confinement where there is strong spin orbit coupling.
He held a number of postdoctoral roles in the fields of high-brightness entangled photon generation for quantum cryptography and teleportation (KTH Stockholm), and ballistic electron charge and spin transport in bulk group IV and III-V semiconductors (University of Toronto).
The bulk of his career has been spent in industry applying his physics knowledge alongside skills in project management, engineering, and design in the motion picture industry, medical device industry, nuclear industry, and industrial imaging and sensing.
He has specific interests in low noise, spectroscopic calorimetric radiation detectors, (quantum) information theory, quantitative imaging, mammography, and quantitative spectrometry for bioprocess control and advanced medicinal therapy manufacture.
Research areas:
- X-ray and gamma detectors
- Environmental and asset monitoring
Graduated EngD students (co-supervised)
- Dr Elena Marimón Muñoz (2019, University of Bournemouth) – Digital radiography: Image Acquisition and Scattering Reduction in X-ray imaging.
- Dr Robert Platten (2023, University College London) - Development of a Spectroscopic, Monolithic, Label-Free Probe for Bioprocess Analysis.
External Roles:
- Institute of Physics Medical Physics Group Committee (2017 – present)
- UK Biomedical Engineering Steering Group (2020 – present)
- Strategic Advisory Board of the Postgraduate Institute of the National Physical Laboratory (2021 – present)