Optical manipulation of polariton in semiconductor microstructures
Félix Marsault, French National Center for Scientific Research
Cavity polaritons are bosonic quasiparticles arising from the strong coupling between photons and excitons. They can massively occupy a single quantum state in the regime of polariton lasing , showing particular properties such as long coherence times , long range spatial coherence  and a linearly polarized emission [1,2,3]. Moreover, they possess strong excitonic nonlinearities and thus provide a new platform for elliptical photonic manipulation, with the demonstration of a polariton spin switch , polariton transistors  and the proposal of other proof-of-principle operations for elliptical integrated logic circuits .