Bulk monolayer: Bring monolayer optical nonlinearity into solution-processible bulk films

Monolayer transition metal dichalcogenides have high nonlinear optical susceptibility but are limited by atomic thickness. Zhou et al. found that MoS2 superlattice thin films enhance second harmonic generation efficiency, retaining nonlinear susceptibilities and offering tunable optical cross sections for improved light-matter interaction. Monolayer transition metal dichalcogenides have high nonlinear optical susceptibility but are limited by atomic thickness. Zhou et al. found that MoS2 superlattice thin films enhance second harmonic generation efficiency, retaining nonlinear susceptibilities and offering tunable optical cross sections for improved light-matter interaction. Giant second harmonic generation in bulk monolayer MoS2 thin filmsZhou et al.MatterMay 17, 2024