Quantum Light-Matter

University of St Andrews

We are an experimental group at School of Physics and Astronomy) working on strong light-matter interaction, specifically exciton-polaritons.

Recent News

PhD position for 2023
We have one fully funded (covering tuition fees and living expenses) PhD position to start in Jan 2023 on perovskite polairtons. This position is open to all nationals. Interested candidates should send their CV to Dr Ohadi.
29 Jul, 2022 1 min read
Publication news
Excited to announce that our Rydberg polariton work is now available online in Nature Materials. See also our university press release, and Nature Mateirals news and views
1 May, 2022 1 min read News
See all posts

Projects

Giant Rydberg polaritons
Strong light-matter coupling of Rydberg excitons in cuprous oxide
Giant Rydberg polaritons
Polariton lattices
Interacting lattices of exciton-polariton condensates
Polariton lattices
Room-temperature polaritons
Room-temperature single polariton nonlinearity in 2-dimensional materials
Room-temperature polaritons

Recent Publications

Quickly discover relevant content by filtering publications.
Materials for excitons–polaritons: Exploiting the diversity of semiconductors
MRS Bulletin (2024)
Review paper on new perspectices on materials for exciton-polritons
PDF Project Project DOI
Materials for excitons–polaritons: Exploiting the diversity of semiconductors
Local tuning of Rydberg exciton energies in nanofabricated Cu2O pillars
Communications Materials (2024)
Rydberg excitons in cuprous oxide feature giant optical nonlinearities that may be exploited in quantum applications if suitably confined. Here, the authors show how exciton confinement can be realised by focused-ion-beam etching of Cu2O crystals without noticeable degradation of excitonic properties.
PDF Project DOI
Local tuning of Rydberg exciton energies in nanofabricated Cu2O pillars
Nonlinear Rydberg Exciton-Polaritons in Cu2O Microcavities
Light Science and Applications (2024)
Observation of a nonlinearity in Rydberg polaritons in Cu2O.
PDF Project DOI
Nonlinear Rydberg Exciton-Polaritons in Cu2O Microcavities
Highly-excited Rydberg excitons in synthetic thin-film cuprous oxide
Scientific Reports (2023)
Synthetic cuprous oxide films have been grown and shown to host Rydberg excitons.
PDF Project DOI
Highly-excited Rydberg excitons in synthetic thin-film cuprous oxide
Laser writing of parabolic micromirrors with a high numerical aperture for optical trapping and rotation
Applied Physics Letters (2023)
Laser ablation of micron-size parabolic mirrors on glass, and using it for trapping of particles
PDF Project Project DOI
Laser writing of parabolic micromirrors with a high numerical aperture for optical trapping and rotation
See all publications

Contact

  • ho35@st-andrews.ac.uk
  • Room 332, Physics and Astronomy, North Haugh, St Andrews, United Kingdom, KY16 9SS