Enzian, G., Szczykulska, M., Silver, J., Del Bino, L., Zhang, S., Walmsley, I. A., et al. (2019). Observation of Brillouin optomechanical strong coupling with an 11 GHz mechanical mode. Optica, 6(1), 7-14. doi:10.1364/OPTICA.6.000007.