Fig. 4 | Nature Communications

Fig. 4

From: Rainbow peacock spiders inspire miniature super-iridescent optics

Fig. 4

Different grating configuration designs and their SEM micrographs. a The flat grating. b The prism grating. c The foil grating. d The lenticular prism (foil-shaped structure without the surface nanograting). e–g The SEM micrographs for the flat (e), prism (f) and foil (g) gratings. Scale bar: ad 5 μm; insets, 2 μm. eg 2 μm