As reported in Advanced Photonics, researchers from Nanyang Technological University, Singapore, and Tsinghua University, China, recently developed on-chip, low-threshold perovskite polariton parametric oscillator that operates at room temperature. Thanks to an S-shaped lower polariton energy dispersion, int...
Lead halide perovskites are emerging as an excellent material platform for optoelectronic processes. There have been extensive discussions on lasing, polariton formation, and nonlinear processes in this material system, but the underlying mechanism remai
One of the input paths is connected to a shorter wavelength laser and is used to drive a direct optical parametric oscillator (OPO). Light is coupled in and out of the chip using a lensed fibre. The output light is separated and sent to silicon and InGaAs avalanche photodiodes [19], a ...