Two-Photon-Pumped Single-Mode Vertical Cavity Lasing Based on Perovskite Monocrystalline Films

摘要

A two-photon pumped high quality single-mode vertical cavity lasing was realized. The VCSEL exhibits a remarkable low threshold of ∼421 μJ/cm², a high quality factor of ∼1286 and a small divergence angle of ∼0.5°.