6 papers · 1 filter
Programmable Synthetic Motion at a Time-Varying Interface
A. C Harwood, D. Cielecki, T. V. Raziman +3
Space-time metamaterials that exhibit synthetic motion promise arbitrary control over the momentum, frequency and energy of scattered light, but realising the required space-time m…
Competing Auger-Like and Intraband Excitations Drive Anomalous Modulations in Indium Tin Oxide
Anthony C Harwood, Sean Z J Lim, T V Raziman +7
Transparent conducting oxides near their epsilon-near-zero frequency exhibit near-unity ultrafast modulations of the refractive index which have enabled the field of time-varying m…
Surface Plasmon Polariton Excitation in Time-modulated Media
T. V. Raziman, Marie Touboul, Riccardo Sapienza +2
Surface plasmon polaritons (SPPs) are central to application areas such as sensing, energy harvesting, and nanoscale optics, and are typically excited via spatial structuring -- an…
Space-Time Optical Diffraction from Synthetic Motion
A. C. Harwood, S. Vezzoli, T. V. Raziman +7
The interaction of light with objects and media moving at relativistic and superluminal speeds enables unconventional phenomena such as Fresnel drag, Hawking radiation, and light a…
Single-mode emission by phase-delayed coupling between nano-lasers
T. V. Raziman, Anna Fischer, Riccardo Nori +10
Near-field coupling between nanolasers enables collective high-power lasing but leads to complex spectral reshaping and multimode operation, limiting the emission brightness, spati…
Mode visualisation and control of complex lasers using neural networks
Wai Kit Ng, T. V. Raziman, Dhruv Saxena +7
Understanding the behaviour of complex laser systems is an outstanding challenge, especially in the presence of nonlinear interactions between modes. Hidden features, such as the g…