Observation of hyperbolic intersubband polaritons in native-dielectric-doped van der Waals semiconductor quantum wells
Yue Luo, Dapeng Ding, Andres M. Mier Valdivia, Daniel T. Larson, Song Liu, Hong Kuan Ng, Jing Wu, Kenji Watanabe, Takashi Taniguchi, Efthimios Kaxiras, Hongkun Park, Philip Kim, William L. Wilson.