Figure 4
From: Gold-Nanocluster-Assisted Nanotransfer Printing Method for Metasurface Hologram Fabrication

Images of the fabricated angular nanoslit metasurface. (a) Photograph of the flexible polymer stamp with four deposited layers of Au and SiO2. (b,c) FIB images of the surface and cross-section of the Au and SiO2 layers deposited on the polymer stamp. (d) Nanoslit metasurface fabricated by transferring Au and SiO2 layers onto an adhesive-coated 2-inch glass substrate. (e,f) FIB images of the surface and cross-section of Au and SiO2 layers transferred onto the glass substrate. (g) Photograph of the flexible polymer stamp after transfer of the Au and SiO2 layers were transferred. (h,i) FIB images of the surface and cross-section of the polymer stamp after transfer of Au and SiO2 layers onto the glass substrate.