Scaling Laws for Perovskite Nanolasers With Photonic and Hybrid Plasmonic Modes

Surface plasmons exhibit an extraordinary capability to reduce the structural size and improve light−matter interaction. However, for small-sized plasmonic cavities, the optical diffraction limit makes the near-field difficult to observe, complicating the analysis of exact lasing characteristics. In this study, a 4f measurement system is used to extract the mode parity from the interference pattern and reconstruct the near-field of the hybrid plasmonic perovskite nanolasers. In conjunction with other measurements, a series of rigorous methods for determining the exact resonance mode and obtaining the precise lasing characteristics of perovskite nanolasers are described. By applying these methods, the scaling laws for wire-type hybrid plasmonic perovskite lasers are successfully determined and an appropriate size is selected for achieving outstanding lasing performance with low threshold power consumption and a high group index. These methods can be applied to nanowire plasmon-based lasers to advance the development of plasmonic devices.