I am interested in light-matter interactions - how we can use light to manipulate individual atoms, or atoms to manipulate the properties of light. I am particularly interested in studying the behaviour of energetic (hot) electrons generated by light, or by a local electronic probe (the tip of a scanning tunnelling microscope); how these hot electrons interact with atoms, molecules, and surface defects; and how they dissipate their energy on surfaces in two-dimensional materials. I am also interested in developing speciality low-loss hollow-core optical fibres for high-power laser light delivery and for miniaturisation of alkali vapour devices. In addition, I work on exploiting the optical nonlinearity of exotic two-dimensional materials.