Yeah, I'd be interested in hearing if this can be expanded to other wavelengths. I doubt it would work in a wide range of wavelengths simultaneously though.
Possible applications: 1) solar heating panels need to absorb light... surfaces often painted black, but would probably work better if etched this way instead of painted; 2) also, radiative cooling surfaces should work best if blacken this way; 3) similarly, if can make "white", surfaces should be cooler... i.e. cool roofing material, etc.
what is the durability of these surfaces? Could they be used to any advantage to replace ruled gratings? It seems that touching them would destroy the effect...but it's great work nevertheless
deatopmg, I guess most of them won't be so easily destroyed by touching, since they are of metal. One need to at least scratch it. Maybe gold would be too soft but aluminum should be able to withstand touching.
Once all the colours are available it should be possible to burn a photographic image into the metal surface. Those rainbow colours after welding will be due to varying thickness of oxide layers. already with oxides it is possible to get some nice colour effects.
i was wondering if this technology can be applied to wedding rings to make a platinum band look like the blue metal in this link; http://img.photob...617.jpg.
mrlewish
Feb 1, 2008