Photonics

Nanophotonics

Focus on slow light

Our research aims to understand and control the light-matter interaction in photonic nanostructures and to build functional devices that make use of this understanding.  Interest lies in developing nanostructures both technologically and conceptually and studying fundamental concepts such as nonlinearity and light emission as well as more applied areas such as biosensors and solar cells.

Quantum Nano-optomechanics

Nanomechanical Resonators

A prerequisite to achieve quantum control over nanomechanical resonators is to understand their dissipation. We have developed a theoretical framework to elucidate the damping induced by their mechanical coupling to the substrate. The figure shows a test of its predictions (blue plot) on silicon-nitride membrane nanoresonators for which the measured Q-values of different harmonics (red plot) exhibit a non-monotonic behaviour.