Design of wavefronts transformers with complementary media

Since complementary media was proposed, it is widely used in electromagnetic cloaking. In this work, we realize some other optical devices that deal with wavefronts transformations with complementary media, which have obvious advantages over traditional ones. More importantly, we devise a novel-shape transformer that can create an illusion source to prevent the real source from being detected accurately. Some of these devices we develop can be realized with isotropic and homogenous materials. Influence of loss on optical performance is also explored. Moreover, the impact of evitable obstacles outside on the properties of these devices can be avoided by adding their complementary “images” inside these devices.