One-Directional Perfect Cloak Created With Homogeneous Material

A one-directional invisibility cloak is presented in this letter. Perfect invisibility can be achieved for TM waves along certain directions. The parameters are just homogeneously anisotropic and relatively easy for practical realizations. Nonmagnetic cloak is also studied to further reducing the complexity of the cloak parameters. Thin layered systems with alternating isotropic materials are then designed to model the parameters of such kind of cloaks.