Fig. 2

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Atomic force (a and b) and confocal laser (c) microscope images of the three textures investigated in this study. (a) Sinusoidal texture in hexagonal geometry, with peak distance and texture depth of around 750 nm (manufacturer's information) and 300 nm, respectively. (b) Periodic inverted pyramids with periodicity and depth of around 1250 nm (manufacturer's information) and 500 nm, respectively, and a base side length of 1000 nm. (c) Commercially available Gaussian circular diffusor texture, produced in foils by temicon GmbH, Germany.

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