Transformation optics for microwave and optical device design

In this paper, the state-of-the-art quasi-conformal mapping (QCM) transformation optics technique is studied to design high performance electromagnetic devices which can be widely applied in the fields of microwaves and optics. At first, novel plasmonic wave manipulator is designed, which can manipulate the transmission of plasmonic waves efficiently. Second, a 3D microwave flattened parabolic antenna and a flattened generalized Luneburg lens are designed by using the QCM technique. Finally, a high-efficiency plasmonic waveguide is realized by applying the flattened Luneburg lens.