Interlayer exciton mediated second harmonic generation in bilayer MoS2

oleh: Shivangi Shree, Delphine Lagarde, Laurent Lombez, Cedric Robert, Andrea Balocchi, Kenji Watanabe, Takashi Taniguchi, Xavier Marie, Iann C. Gerber, Mikhail M. Glazov, Leonid E. Golub, Bernhard Urbaszek, Ioannis Paradisanos

Format: Article
Diterbitkan: Nature Portfolio 2021-11-01

Deskripsi

Efficient second-harmonic generation (SHG) occurs for crystals with broken inversion symmetry, such as transition metal dichalcogenide monolayers. Here the authors show SHG tuning in bilayer MoS2 - an inversion-symmetric crystal - mediated by interlayer excitons.