1.2k citations · 3.2k across the 9 of their papers we have counts for
3 papers · 1 filter
Tightly bound excitons in monolayer WSe2
Keliang He, Nardeep Kumar, Liang Zhao +4
Exciton binding energy and excited states in monolayers of tungsten diselenide (WSe2) are investigated using the combined linear absorption and two-photon photoluminescence excitat…
Charge carrier dynamics in bulk MoS2 crystal studied by transient absorption microscopy
Nardeep Kumar, Jiaqi He, Dawei He +2
We report a transient absorption microscopy study of charge carrier dynamics in bulk MoS2 crystals at room temperature. Charge carriers are injected by interband absorption of a 55…
Second harmonic microscopy of monolayer MoS2
Nardeep Kumar, Sina Najmaei, Qiannan Cui +4
We show that the lack of inversion symmetry in monolayer MoS2 allows strong optical second harmonic generation. Second harmonic of an 810-nm pulse is generated in a mechanically ex…