Broadband high efficiency asymmetric transmission of achiral metamaterials
作者： Wenjun Fan , Yanrong Wang , Ruqiang Zheng , Dahe Liu , Jinwei Shi
DOI: 10.1364/OE.23.019535
关键词:
摘要: Asymmetric transmission (AT) effect has attracted great interest in recent years, due to its potential application in integrated photonics from GHz to optical frequency. To realize AT effect, numerous metamaterials have been proposed, mainly based on the chirality of the structure. In this paper, we demonstrate that achiral metamaterials can also have AT effect. Furthermore, it is shown that modal conversion is more essential than chirality to achieve AT effect. In particular, we have proposed a mirror symmetric metamaterial with broadband high …
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