Chiral superfluorescence from perovskite superlattices at room temperature

• 成果类型: Article
• 署名作者: Wei, Qi; Peter, Jonah S.; Ren, Hui; Wang, Weizhen; Zhou, Luwei; Liu, Qi; Ostermann, Stefan; Yin, Jun; Cai, Songhua; Yelin, Susanne F.; Li, Mingjie
• 署名单位: Hong Kong Polytechnic University; Harvard University; Harvard University; Harvard University; Hong Kong Polytechnic University; Hong Kong Polytechnic University
• 刊物名称: NATURE
• ISSN/ISSBN: 0028-0836; 1476-4687
• DOI: 10.1038/s41586-026-10637-x
• 发表日期: 2026-06-11
• 关键词: COOPERATIVE RADIATION PROCESSES; 2-LEVEL SYSTEMS

摘要

Superfluorescence (SF) is the collective emission of intense, coherent light from an interacting ensemble of quantum emitters(1, 2, 3-4). Although SF has been observed in several solid-state materials(5, 6, 7-8), the spontaneous generation of circularly polarized SF from chiral materials (chiral SF) has not been realized(9,10). Here, we report the observation of chiral SF originating from edge states in large-area (>100 & micro;m & times; 100 & micro;m), vertically aligned chiral perovskite superlattices at room temperature. Theoretical quantum optics calculations describe the transition from initially unpolarized, incoherent spontaneous emission to a coherent chiral SF state, quantitatively reproducing both the experimentally observed generation of circular polarization (up to about 14%) and its reversal of sign with opposite material handedness. Moreover, we show that both the intensity and the degree of circular polarization of chiral SF can be modulated by a weak magnetic field, enabling precise control over solid-state quantum light emission at room temperature. Our findings demonstrate an interplay between chirality and many-body quantum coherence, thereby showing promising new directions for chirality-controlled quantum optical applications.