Plasmon-induced transparency in ring-bar meta-atom

Autor: Wan-Xia Huang, Cun-Yuan Zhu, Mao-Sheng Wang, Kuan-Guo Li, Jian-Ping Shi, Fa-Bao Zhang
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: AIP Advances, Vol 8, Iss 3, Pp 035202-035202-8 (2018)
Druh dokumentu: article
ISSN: 2158-3226
DOI: 10.1063/1.5018028
Popis: We introduce an approach for constructing a scalable metamaterial structure, which is composed of a ring and a bar in a unit cell, and supports singular plasmon-induced transparency. The composite multilayered structure consists of coupled meta-atom with bright modes and dark modes interacting through the introduction of structural asymmetry, which involves the displacement of the bar from the center of the ring. The splitting and merging of the absorption peaks is observed with the change in asymmetric degree. In addition, coupled-mode theory with a two-mode and two-port model is introduced to explain the observed novel spectral feature. The results provide a reference for further application to optoelectronic devices.
Databáze: Directory of Open Access Journals