- A semiconductor microcavity structure
Microcavities represent a new interface where light and matter meet to produce remarkable nonlinear effects. This physics can be exploited in the realisation of the next generation of low threshold lasers.
- Interactions between photons and excitions produce polaritons
The microcavities are constructed in a way that confines photons between highly reflective mirrors, causing them to bounce back an forth. These photons interact with excitions leading to the onset of a new quasi-particle that exhibits properties of light and matter - Polaritons.
- Bose Einstein condensation in a microcavity at room temperature
Because polaritonic quasiparticles have extraordinarily light masses and they are bosons, they can condense together in a single quantum state. This makes for extremely unusual emitters, as well as new solid-state devices exhibiting Bose-Einstein condensation at room temperature.