Nature CommunicationsVertical chiral emission from an intrinsically achiral metasurface enabled with anisotropic continuumYuwei SunZhipeng HuMengqi LiuJianfeng ChenDmitrii GromykoKezhang ShiLin WuYi JinSailing HeCheng-Wei Qiu2026-01-31Full textDOI https://doi.org/10.1038/s41467-026-68728-2