Transformation Optics Methodology for Changing the Appearance of an Object

School of Information Science and Engineering, Shandong University, Jinan 250100, China(Received October 26, 2015 : revised February 23, 2016 : accepted February 24, 2016)Transformation optics methodology provides a new pathway for designing novel devices. It is based on changing a material’s permittivity and permeability. A design for changing the appearance of an object by transformation optics methodology is proposed here. Through a certain transformation, the relations of the metric spaces and the calculation of the material parameters are derived, and the aim of changing the apparent size of an object can be realized. Full wave simulations are performed to validate the proposed device’s performance. It is possible to think that the methodology will improve the flexibility of designing interesting applications in microwave and optical regimes.Keywords : Transformation optics, Coordination transformation, Anisotropic media, MetamaterialOCIS codes : (350.6980) Transforms; (000.3860) Mathematical methods in physics; (160.1190) Anisotropic optical materials; (160.3918) Metamaterials