Multimode ultrastrong coupling in three-dimensional photonic-crystal cavities Multimode ultrastrong coupling in three-dimensional photonic-crystal cavities Fuyang Tay, Ali Mojibpour, Stephen Sanders, Shuang Liang, Hongjing Xu, Geoff C Gardner, Andrey Baydin, Michael J Manfra, Alessandro Alabastri, David Hagenmüller, Junichiro Kono. Nature Communications [PDF] [Article] https://manfragroup.org/wp-content/uploads/2026/06/manfra-logo.svg 0 0 admin https://manfragroup.org/wp-content/uploads/2026/06/manfra-logo.svg admin2025-04-16 15:04:312026-05-29 15:09:24Multimode ultrastrong coupling in three-dimensional photonic-crystal cavities