Photonic crystal

Photonic crystals are composed of metallo-dielectric nanostructures. Among the substance's properties is the ability to hold information and energy.

Fiction

IDW Generation 1 continuity

The Matrix of Leadership was a synthetic photonic crystal, designed to split in half. With one half, one could project a map out of it. The Death of Optimus Prime When Nova Prime called for the creation of new Cybertronians in the wake of Vector Sigma's weakening pulsewaves, the resulting cold constructed sparks were produced at such an alarming rate that the excess sparks' energies had to be contained within photonic crystals The Lopsided Triangle.