Single-Mode Lasing with Spontaneous Symmetry Breaking from a Perovskite Microdisk Dimer

• DOI: 10.1021/acsphotonics.2c00851
• Publication Date: 2023-01-04T15:21:35Z
• Authors: Guodong Liu; Hui Liu; Ju Wang; Shangtong Jia; Guozhou Li; Yifan Li; Yunan Gao; Hong Yang; Shufeng Wang; Qihuang Gong
• Keywords: Mode (computer interface)

In this study, we design novel single-mode lasers based on non-Hermitian physics to avoid inadequate mode performance when the free spectral range is small. The perovskite microlaser, consisting of two partly fused microdisks, presented here. Spontaneous symmetry breaking occurs under uniform pumping, which results in directional lasing at a visible with an improved side-mode suppression ratio. addition, wide pump becomes applicable due microcavity property, where single stable even 2.4 times pumping threshold. structural spontaneous opens new route synthetic laser systems and other photonic devices range.