Tunable laser for strong light-matter coupling in novel semiconductors

We request an Optical Parametric Amplifier (OPA) that will turn our Light Conversion Carbide 6W laser into a widely tunable light source for studies of strong coupling between photons and excitons (electronhole pairs) in novel semiconductors. Strong exciton-photon coupling leads to formation of exciton polaritons hybrid carriers at an interface between photonics and electronics that could enable fast, low-energy electronics and optoelectronics. We focus on atomically thin transition metal dichalcogenides and led-halide perovskites because they support exciton polaritons in ambient conditions. These materials require laser excitation tunable within 400-800 nm. The OPA will allow us to reach this range.