"photonic fractal"!

[Taro Toporific]

Energy-trapping cube has potential to store light wavesThe Asahi Shimbun / Jan 8
Fractal experts achieve a lucky breakthrough with simple epoxy block.
Japanese researchers tinkering with an experiment that evolved from casual chats created an energy-wave trap that has been the holy grail of scientists worldwide.....The ability to store electromagnetic waves has long been the goal of researchers everywhere....The epoxy resin cube, which is 27 millimeters along each edge and weighs about 9 grams, stored electromagnetic waves within its hollow core ever so briefly.....The group calls the cube's structure 'photonic fractal.''

[Taro Toporific]

Update on this bleeding edge tech....

Crystals Show Promise for Optical Communication
June 07, 2004 / Scientific American
....the journal Science describes a 3D photonic crystal, which emits light at optical communications wavelengths, manufactured using a different approach. Shinpei Ogawa and his colleagues at Kyoto University in Japan made a photonic crystal that resembles a stack of wood with each layer turned 90 degrees with respect to the one below it (see image). The team introduced defects within the 'woodpile' and found that the defects gave off light whereas light emission was supressed in other parts of the structure. The results, the authors conclude, "are an important step towards the complete control of photons in [photonic crystals]."