Abstract
Abstract We report a quantitative method for evaluating the optical quality of large-area colloidal crystals based on imaging spectroscopy. We measured the transmission spectra with the spatial resolution of large colloidal crystals having different optical quality and examined the characteristic features in terms of the standard deviation calculated on the basis of pixel-by-pixel transmittance of all pixels. As a result, it was possible to quantitatively characterize the difference between weakly and highly oriented samples prepared by a shear-induced method as a difference in the standard deviation in a pass-band wavelength region.
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