Nature CommunicationsFull-color 3D visualization with Janus metafiberHaotian XuTianyue LiHaotian DingShaochen FangXiangyu MaHaojie ChenYe ChenYifeng XiongShuming WangFei Xu2026-06-08Full textDOI https://doi.org/10.1038/s41467-026-74131-8