Photon‐Sphere Modes in Curved Optical Microcavities: A Black‐Hole Analogue Laser. - Xu, Chenni; Sundaresan, Aswathy; Kazkal, Nazire‐Begüm; Lafargue, Clement; Zarfaty, Lior; Wang, Li‐Gang; Birnholtz, Ofek; Decanini, Dominique; Lebental, Melanie; Sebbah, Patrick (Advanced Science, 2026)