An innovative cloak enables arbitrary multi-objects hidden with visions and movements

We propose an innovative cloak to enable arbitrary multi-objects hidden with visions and movements. We develop the cloak with spatially varying constitutive parameters by employing transformation optics with two-step coordinate transformations and testify the performance of the cloak by finite element based simulation software. In simulation, the electric field distributions (E-z) of the cloak for different circumstances agree with the analytical prediction well. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4757868]