Figure 3From: New Colloidal Lithographic Nanopatterns Fabricated by Combining Pre-Heating and Reactive Ion EtchingSEM images of preheated inhomogeneous densified monolayer of PS spheres with 465 nm in diameter after oxygen RIE for different time:a 0 s,b 600 s,c 900 s, respectively. Thescale bar is 500 nm in each imageBack to article page