Complex control of polaritons based on optical Stark potential

Effectively controlling exciton-polaritons is crucial for advancing them in optical computation. In this work, we propose utilizing the valley-selective optical Stark effect (OSE) as an all-optical way to achieve the spatiotemporal control of polariton flow. We demonstrate the polarization-selective concentration of polaritons at pre-determined locations by wavefront shaping of the polaritons through an in-plane bar-code potential induced by the OSE, which helps overcome the intra-cavity disorder in potential distribution. In addition, a polariton decoder that converts binary inputs to decimal outputs is proposed by expanding the one-dimensional bar-code potential into a two-dimensional quick-response code potential offering enhanced control and encoding, whose robustness and valley selectivity are demonstrated.