These dudes making a Bose-Einstein Condensate out of photons might be able to give us coherent light at UV or even X-ray frequencies, which would be rather nice

These dudes making a Bose-Einstein Condensate out of photons might be able to give us coherent light at UV or even X-ray frequencies, which would be rather nice for communication: http://www.nature.com/nature/journal/v468/n7323/full/nature09567.html http://www.nature.com/nature/journal/v468/n7323/full/nature0...