Research / 2020 / Article / Fig 6

Research Article

Structuring Nonlinear Wavefront Emitted from Monolayer Transition-Metal Dichalcogenides

Figure 6

(a) Schematic illustration of holographic imaging of the SHG beam under a LCP fundamental beam in the Fresnel region; the inset shows the whole SH phase distribution for the SH hologram “HUST” and SEM image of the Au metasurface (partial). (b–d) The objective, theoretical, and experimental images of holographic imaging.