This improvement results from the use of a large 6.5 m telescope for photography at its theoretical resolution limit for wavelengths of visible light. (carnegiescience.edu)
He wants to see if the other wavelengths of visible light may also trigger the reaction with adjustments to the synthetic material. (sciencedaily.com)
So there appears to be an inherent limit for how finely we can resolve an image, and it is roughly half the size of the smallest wavelength of visible light. (kavliprize.org)