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. 2015 Jun 15;6:7416. doi: 10.1038/ncomms8416

Figure 3. Arbitrary photonic crystal patterns printed on the new SMP membranes.

Figure 3

(a) Photograph of a translucent macroporous SMP film with disordered macropores. (b) Cross-sectional SEM image of the macroporous sample in a with deformed macropores. (c) Photograph of a green-coloured fingerprint pressed on the sample in a. (d) Cross-sectional SEM image of an iridescent region in c with 3D ordered macropores (300 nm diameter). (e) Photograph of an iridescent ‘light bulb' pattern printed on a translucent macroporous SMP membrane templated from 300 nm silica microspheres. (f) Photograph of the rubber stamp used in generating the ‘light bulb' pattern in e. (g) Optical microscopic image of micropatterned pairs of double lines on a macroporous SMP membrane. (h,i) 3-D AFM image and the height profile of a section of a line in g.