Cloudscape

Scientists have created a perfect mirror made from layers of dielectrics which, at certain angles, can reflect light without loss of energy (source), for use in optical fibres. Maybe such perfect mirrors could be used for the storage of energy in the form of light, for instance in cyclical optical fibres, so that these could be used to produce optical batteries. This light would preferably of high wavelength, which is colder, as an optical battery would melt or burn if it contained too much light. How much energy could be stored in optical batteries remains an open question, but the concept is, either how, fascinating that we could catch light and put it in a battery.