Influence of plasmon resonances and symmetry effects on second harmonic generation in WS2-plasmonic hybrid metasurfaces

Florian Spreyer, Claudia Ruppert, Philip Georgi +1

The nonlinear process of second harmonic generation (SHG) in monolayer (1L) transition metal dichalcogenides (TMD), like $W{S}_2$, strongly depends on the polarization state of the e…