The main aim of this research group is to investigate the ultrafast optoelectronic processes of low-dimensional materials for the development of next-generation devices. Our main research interests are:
Ultrafast Terahertz Characterisation
We use a wide range of terahertz spectroscopy and microscopy techniques to perform non-contact, non-destructive optoelectronic characterisation at 3 extremes: low temperatures (<10K), ultrafast (<1ps) timescales and nanometre (<30nm) length scales. Our terahertz characterisation suite based in the Photon Science Institute offers the following facilities:
- Terahertz time-domain spectroscopy
- Broadband MIR spectroscopy
- Optical-pump terahertz/MIR-probe spectroscopy
- Scattering-type near-field terahertz/MIR microscopy
Low-dimensional and topological materials
Advanced functional materials, such as 2D materials and III-V nanowires, underpin the next-generation of technologies. As silicon reaches a fundamental limit, ’21st century’ devices will need to utilise quantum effects to see a step chance in performance and energy efficiency. Low-dimensional quantum materials have emerged as promising candidates for such devices. Within our group, we are investigating the optoelectronic behaviour of the following materials:
- Silicon and III-V semiconductor nanowires
- 2D topological insulators
- Dirac semi-metal and topological insulator nanowires
- 2D material heterostructures
Ultrafast Terahertz Devices
Terahertz devices have the potential to impact a range of sectors, including healthcare and medical imaging; defense and security; and wireless communciation. Our group are interested in combining the research areas above to develop novel terahertz devices based on low-dimensional materials. We aim to provide active nanoscale terahertz components and are targeting the following devices:
- Single-nanowire ultrafast terahertz photodetectors
- Broadband nanoscale terahertz emitters
- Ultrafast terahertz modulators
For more information on our research activity…
Our research has received financial support from external research bodies, including EPSRC and Royal Society. We would like to thank all these external funders for their support.
We have published our research in a range of research journals and conference proceedings. If you would like to find out more about our work, please check out our publication list.
Have an exciting research idea? Would you like to work with us?
If you would like to start a collaboration or join our group, please contact us.