Cover Picture: Ann. Phys. 1-2'2014



Spacetime or ‘event’ cloaking was recently introduced as a concept, and the theoretical design for such a cloak was presented for illumination by electromagnetic waves.

P. Kinsler and M. W. McCall describe how event cloaks can be designed for simple wave systems, using either an approximate ‘speed cloak’ method, or an exact full-wave one (pp. 51–62).

Image: A ring of fisheye inclusions with increasing χ values, representing different snapshots in bubbleverse expansion, surround a radiating source in this FDTD simulation.