Fig. 6: Photolithography and vacuum-free structural color printing.
From: Structural color printing via polymer-assisted photochemical deposition

a Three-dimensional schematic of the FP cavity. b An exhibited colored ASU logo on the dielectric-coated metallic layer with various PMMA thicknesses using fused silica as a substrate. Scale bar: 50 μm. c Camera image of fabricated FP cavity on PET substrate with slight bending capability. d, e Optical images of produced colored DEETHU logo on the dielectric-coated metallic layer using PET and PDMS as substrates, respectively. Scale bar: 100 μm.