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(Color online) (a) Schematic figure of the experimental setup. The thickness of the spacers is . (b) The experimental cell.
(Color online) (a) Typical ordered assembly of colloidal particles with a diameter of . The scale bar is . (b) Top view ( plane) and cross section ( plane in the inset) of a 2D colloidal crystal. The images of colloidal crystal of and florescent-dyed particles are obtained with a laser confocal microscope. The scale bar is .
(Color online) Measured order parameters of colloidal crystals composed by differently sized particles as a function of frequency. (a) Correlation length . The threshold is 10.0. (b) Bond-orientational order . The threshold is 0.25.
Frequency domains of crystallization of the differently sized colloidal particles.
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