Superlensing and hyperlensing effect realized with Optic-Null transformation optical medium based on metamaterials

Underpinned by the advent of metamaterials (MMs), transformation optics (TO) offers great versatility to design wave-manipulation devices [1,2], such as cloaks, beam shifter, superlenses, impedence-matched hyperlenses, and field rotator. Although TO theory developed vigorously, it´s is quite obvious that most TO ideas are very difficult to realize in practice, because of the extreme electromagnetic parameters. It´s highly desirable to create devices for which real samples can be realized and with which designed functionality can be demonstrated experimentally. In this work, we designed and realized an optically non-existing transformation-media, called “Optic-Null media” (ONM) [3], based on a fractal plasmonic metamaterial. Distinct from epsilon-near-zero media and hyperbolic media, our design is prefect transparent for any incident angle for TE or TM mode at working frequency, without phase accumulation. Based on the coordinate transformation methods, the permittivity tensor and permeability tensor of such media are described as equation.