Fig. 5: Scheme of the experimental setup.
From: Quantum coherence of a long-lifetime exciton-polariton condensate
The sample is nonresonantly excited in reflection geometry by a cw laser, spatially reshaped to an annular trap. The emission is then either analyzed using a combination of spectrometer and CCD or a two-channel homodyne detection setup. (SLM: spatial light modulator; PBS: polarized beam splitter; MO: microscope objective; FM: flip mirror; λ/2: half waveplate; λ/4: quarter waveplate).
