Anisotropic Interlayer Exciton in GeSe/SnS van der Waals Heterostructure

Using GW and Bethe–Salpeter equation simulations, we demonstrate the generation of linearly polarized, anisotropic intra- and interlayer excitonic bound states in the transition metal monochalcogenide (TMC) GeSe/SnS van der Waals heterostructure.

Nonlinear Polarization and Low-Dissipation Ultrafast Optical Switching in Phosphorene

Here, we study the interaction of high-intensity pulsed femtosecond laser of various intensities and carrier frequencies with a monolayer phosphorene using the RT-TDDFT. We observe optical Kerr effect associating the changes in the number of free charge carriers with the change in the refractive index of the material, which subsequently characterizes the material’s ability of dielectric switching.