Fig. 2: Typical top-view and side-view SEM images of the IA-Chol films with polystyrene spheres (D = 500 nm) on the surfaces after being exposed to the circularly polarized light for different time periods.
From: Self-organized patterning on azo molecular glass film via optical near-field effect
a Top-view, irradiation for 30 min. The inset shows the E-field norm distribution on the surface of the IA-Chol film with the polystyrene sphere (D = 500 nm) exposed to the circularly polarized light (λ = 488 nm), which was simulated by COMSOL Multiphysics. b Side-view, irradiation for 30 min. c Side-view, irradiation for 60 min. The light intensity and wavelength were 300 mW cm−2 and 488 nm. The scale bars of all the SEM images correspond to 2 μm.
