Inside Front Cover: Multicolor Pattern Generation in Photonic Bandgap Composites (Adv. Mater. 2/2005)

The generation of complex, permanent, multicolor patterns in photonic bandgap films is demonstrated. The procedure allows for the overall spatial control of the reflected color on the surface of a photonic crystal, as well as the ability to define the visible or near-IR response of a patterned region through control of the stop-band wavelength. For example, the attached image presents a 10 mm wide, orange, “tiger paw” insignia templated on a green background. See also inside front cover.