Zhenyu Xiong, Hao Wu, Yuanwen Cai, Xiaokun Zhai, Tong Liu, Baili Li, Tieling Song, Longfei Guo, Zhengliang Liu, Yifan Dong, Peicheng Liu, Yuan Ren
Exciton-polariton systems composed of a light-matter quasi-particle with a light effective mass easily realize Bose-Einstein condensation. In this work, we constructed an annular trap in a halide perovskite semiconductor microcavity and observed the spontaneous formation of symmetrical petal-shaped exciton-polariton condensation in the annular trap at room temperature. In our study, we found that the number of petals of the petal-shaped exciton-polariton condensates, which is decided by the orbital angular momentum, is dependent on the light intensity distribution...
April 15, 2024: Nano Letters