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

Abstract

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 (Ez) of the cloak for different circumstances agree with the analytical prediction well.