I know the basics of making a hologram, and I suppose that we can use white lasers to produce multicolored holograms when regular light shines on it, because white light isn’t a wavelength, due to lacking interference, which means that we can use the interference pattern of the separate colors for the multicolored holograms, because they do interfere when they are being captured. The catch is that the light should be coherent. This enables physical anisotropic 3D images in contrast to using screens.
