Transformation devices with optical nihility media and reduced realizations
Lin Xu1(), Qian-Nan Wu2, Yang-Yang Zhou3, Huan-Yang Chen3()
1. Key Laboratory of Opto-Electronic Information Acquisition and Manipulation of Ministry of Education & Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, China 2. School of Science, North University of China, Taiyuan 030051, China 3. Institute of Electromagnetics and Acoustics and Department of Electronic Science, Xiamen University, Xiamen 361005, China
Starting from optical nihility media (ONM), we design several intriguing devices with transformation optics method in two dimensions, such as a wave splitter, a concave lens, a field rotator, a concentrator, and an invisibility cloak. Though the extreme anisotropic property of ONM hinders the fabrication of these devices. We demonstrate that those devices could be effectively realized by simplified materials with Fabry–Pérot resonances (FPs) at discrete frequencies. Moreover, we propose a reduced version of simplified materials with FPs to construct a concentrator and a rotator, which is feasible in experimental fabrications. The simulations of total scattering cross-sections confirm their functionalities.
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