Designing Devices for Wave-Vector Manipulation Using a Transformation-Optics Approach

作     者：Mircea Giloan 

作者机构：Company for Applied Informatics Republicii 107 400489 Cluj-Napoca Romania 

出 版 物：《Physical Review Applied》 (Phys. Rev. Appl.)

年 卷 期：2017年第8卷第1期

页      面：014005-014005页

核心收录：

学科分类：07[理学] 0702[理学-物理学] 

基　　金：Company for Applied Informatics using infrastructure obtained through Program [POSCCE-A2-O2.3.2-2012-1, 1542/SMIS: 44023] PNII/153/2014 

主　　题：Metamaterials Electromagnetic wave theory Finite-difference time-domain method Transformation optics 

摘      要：A transformation-optics approach is used to derive a general method for designing electromagnetic devices able to manipulate the wave vectors in the specific manner required by the functionality of the device. While the wave paths inside the device remain of secondary importance, the wave vectors are gradually changed in the desired way by choosing the appropriate coordinate transformation. The proposed method is applied to designing both converging and diverging flat lenses. Computer simulations reveal the focusing ability of a converging flat lens designed using the proposed technique.