Tunable dual-band metamaterial absorber in the infrared range based on split-ring-groove array
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影响因子：1.905
DOI码：10.1364/AO.446757
发表刊物：Applied Optics
摘要：In this paper, we present a tunable dual-band perfect metamaterial absorber working in the infrared band by integrating a metallic split-ring-groove resonator array with a liquid crystal (LC) layer atop a metal substrate. By varying the height of the central nanodisks, the absorptivity of the dual-band absorption peaks can be simultaneously adjusted. The dual-band resonance frequencies of the proposed absorber exhibit continuous tunability by adjusting the refractive index of the LC, which can be controlled by applying external voltage. The mechanism of the perfect absorption is attributed to the gap plasmonic resonance coupling regime. The presented absorber exhibits good tolerance to incidence angles up to 60° and shows polarization dependent performance, which may offer promising applications in sensing, modulator, and optical absorption switching in the infrared regime.
合写作者：Bingyi Liu,Shuai Tang,Jie Song
第一作者：Jinlai Liu
论文类型：期刊论文
通讯作者：Yongyuan Jiang
论文编号：000740900800023
学科门类：理学
文献类型：J
卷号：61
期号：2
页面范围：471-477
字数：3000
ISSN号：ISSN 1559-128X
是否译文：否
发表时间：2022-01-10
收录刊物：SCI
发布期刊链接：https://opg.optica.org/ao/abstract.cfm?uri=ao-61-2-471