Probing Dark Excitons in Monolayer by Nonlinear Two-Photon Spectroscopy

C Qian, V Villafañe, P Soubelet, P Ji, AV Stier… - Physical Review Letters, 2024 - APS
We report a new dark exciton in monolayer MoS 2 using second harmonic generation
spectroscopy. Hereby, the spectrally dependent second harmonic generation intensity splits …

Probing the Dark Exciton in Monolayer MoS by Quantum Interference in Second Harmonic Generation Spectroscopy

C Qian, V Villafañe, P Soubelet, P Ji, AV Stier… - arXiv preprint arXiv …, 2023 - arxiv.org
We report resonant second harmonic generation (SHG) spectroscopy of an hBN-
encapsulated monolayer of MoS $ _2 $. By tuning the energy of the excitation laser, we …