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Figure 2 | Nanoscale Research Letters

Figure 2

From: Creation of Controlled Defects Inside Colloidal Crystal Arrays with a Focused Ion Beam

Figure 2

a Selective removal of PS spheres to obtain an alternating geometry: three attempts (from top to bottom) to refine the recipe which employs the water-assisted milling; b successful achievement in a square array; c results for a hexagonal array. d serial removal of spheres in a row to obtain a waveguide-like optical cavity. (a and d: ion images, HFW = 5.12 μm and HFW = 2.84 μm, respectively; b and c: ESEM at 15 kV, chamber pressure 220 Pa, HFW = 2.56 μm both)

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