Nature CommunicationsA lithography-free approach to polaritonic Luneburg lensesZhenyang CuiYouning GongWenzhi YuSihao XiaZhiwei HeXingyu TangBin ZhengHuaping WangWeiliang MaYupeng ZhangHongsheng ChenYingjie Wu2025-08-20Full textDOI https://doi.org/10.1038/s41467-025-63097-8