Materials that exhibit non-centrosymmetry are typically suitable for optical rectification. Common examples include nonlinear crystals like lithium niobate (LiNbO₃) and gallium arsenide (GaAs). Additionally, recent advancements in nanotechnology have led to the exploration of two-dimensional materials such as graphene and transition metal dichalcogenides (TMDs), which have shown promise due to their unique electronic and optical properties.
