摘要： Metamaterials are artificial structures designed for controlling electromagnetic and acoustic waves or fields, they exhibit exceptional properties that are unexpected from their chemical constituents. These properties lead to some fascinating phenomena such as negative refraction, subwavelength imaging, and field enhancement, etc. Novel devices based on these ideas such as superlens, hyperlens, invisibility cloak, and plasmonic waveguide have been fabricated and tested in the past few years. Although these developments are inspiring, some problems are unresolved. For example, most metamaterials are absorptive, which reduce or even destroy their novel characteristics. In addition, results of band structure calculations for metamaterials (most of which are metallic photonic crystals) are incomplete or lacking, thus most understandings to the EM/optical properties of these artificial media are based on the concept of homogenized parameters such as effective permittivity and permeability. In this chapter, we give a simple review on metamaterials research and discuss the problems need to be resolved in the future. 出版者： The Netherlands: Springer Netherlands 出版日期： 2015-01-01 出處： The Current Trends of Optics and Photonics, 2015, Vol.129, p.35-58 資源來源： Springer Books 版權： Springer Science+Business Media Dordrecht 2015 識別號： ISSN: 0303-4216 識別號： ISBN: 9789401793919 識別號： ISBN: 9401793913 識別號： EISSN: 1437-0859 識別號： EISBN: 9789401793926 識別號： EISBN: 9401793921 識別號： DOI: 10.1007/978-94-017-9392-6_2 識別號： OCLC: 897115952 識別號： LCCallNum: QC685-689.55
