Figure 2. Top figures: digital images of sample bottles coated with
spheres of various sizes. Left photograph: sample bottles exhibit
different colors with white back light. Right photograph: original sample
bottle. Bottom figure: UV-vis spectra of spheres of various sizes.
The colors of lines are the colors of light through the sample bottles.
Yellow, 906 nm; orange, 955 nm; red, 1008 nm; blue, 1233 nm; cyan, 1354 nm; green, 1440 nm.