photonic crystals

Figure 1: Light propagation inside a photonic crystal is forbidden by a propagation gap, hence common plane waves are reflected and hardly penetrate into the crystal. By shaping the incident waves, they can be steered deep into the crystal. (Image: COPS, University of Twente) 

Crossing the forbidden gap

A team of researchers has achieved a new level of control over light entering photonic crystals

Photonic crystals are responsible for the iridescent colours of a butterfly's wings.

Thinner crystals, smaller chips

Researchers have devised a new way of generating thin 3D photonic crystals that show promise for miniaturising photonic integrated circuits

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