Interacting Photons

In the Interacting Photons group, we  investigate phenomena emerging from optical nonlinearity and noise. Our experiments are based on tunable microcavities  filled with organic or inorganic materials. We use these systems to explore fundamental physics of non-equilibrium phase transitions, noise-assisted transport, non-Markovian dynamics, and quantum simulation. We are also interested in applications of nonlinear optical systems, such as isolators, sensors, and analog computers & simulators.

Figure 1.  This figure shows how we can couple photons in open-access microcavities with excitons in active materials to create hybrid light-matter quasi-particles known as polaritons.  The excitonic constituent confers polaritons giant interaction strengths, while the photonic constituent enables micron-scale confinement of polaritons followed by photon emission. Hence, polaritons constitute an excellent system for studying light-matter interactions under the influence of tunable interactions, driving, dissipation. Figure credit to Henk-Jan Boluijt, AMOLF.
Phase transitions of light
We probe the physics of Scaling and Universality in driven-dissipative optical systems
Nonlinear Devices
We derive functionality from optical nonlinearity and noise.
Polariton Lasing
We investigate novel hybrid light-matter systems for achieving lasing or condensation at room-temperature