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Photograph of equipment for simultaneous acquisition of photographs and reflectance spectra. 1 flow cell containing pSi sample, 2 beam splitter, 3 reflectance probe connected to fiber-optic spectrophotometer, 4 diffuse axial illuminator with tungsten light source, 5 camera, 6 pSi sample, and 7 spectrophotometer. Inset: image of the pSi sample as captured by the digital camera.
