>Diffraction-limited focusing is demonstrated at wavelengths of 405, 532, and 660 nm with corresponding efficiencies of 86, 73, and 66%.

...but I'm not clear on whether that is from a single lens or if they constructed different lenses for each color. (Those wavelengths correspond to violet, green, and red light fwiw) EDIT: the full paper makes it clear this is three separate lenses, so yeah, you're right.