164 citations · 1.1k across the 29 of their papers we have counts for
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Second-order nonlinear optical response of graphene
Yongrui Wang, Mikhail Tokman, Alexey Belyanin
Although massless Dirac fermions in graphene constitute a centrosymmetric medium for in-plane excitations, their second-order nonlinear optical response is nonzero if the effects o…
Stability of High-Density Two-Dimensional Excitons against a Mott Transition in High Magnetic Fields Probed by Coherent Terahertz Spectroscopy
Qi Zhang, Yongrui Wang, Weilu Gao +5
We have performed time-resolved terahertz absorption measurements on photoexcited electron-hole pairs in undoped GaAs quantum wells in magnetic fields. We probed both unbound- and…
Dicke Superradiance in Solids
Kankan Cong, Qi Zhang, Yongrui Wang +3
Recent advances in optical studies of condensed matter have led to the emergence of phenomena that have conventionally been studied in the realm of quantum optics. These studies ha…
Laser-driven parametric instability and generation of entangled photon-plasmon states in graphene and topological insulators
Mikhail Tokman, Yongrui Wang, Ivan Oladyshkin +2
We show that a strong infrared laser beam obliquely incident on graphene can experience a parametric instability with respect to decay into lower-frequency (idler) photons and THz…