期刊
JOURNAL OF OPTICS
卷 24, 期 1, 页码 -出版社
IOP Publishing Ltd
DOI: 10.1088/2040-8986/ac3dda
关键词
metamaterials; plasmon-induced transparency; black phosphorus; anisotropic
类别
资金
- Natural Science Foundation of Jiangsu Province [BK20201446]
In this study, a black phosphorus-based metamaterial is proposed, which can achieve tunable anisotropic plasmon-induced transparency effect by adjusting the carrier density and geometric parameters. The proposed metamaterial has potential applications in designing photonic devices in the mid-infrared region.
Black phosphorus (BP), as a new type of two-dimensional material, has drawn considerable interest because of its distinct physics and electronic characteristics. In this work, we theoretically present a BP-based metamaterial, unit cell of which is composed of a rectangular BP nano-patch and two parallel BP strips. The research results indicate that tunable anisotropic plasmon-induced transparency (PIT) effect can be achieved in the presented metamaterials when the polarization of incident light is along armchair and zigzag directions of BP crystal, respectively. Moreover, the spectra responses and group delay accompanied by the PIT effect can be actively controlled by adjusting the carrier density and geometric parameters. The electromagnetic simulation results calculated by finite-difference time-domain method show good agreement with the coupled Lorentz oscillator model. Our proposed nanostructure provides a new path for designing photonic devices such as slow light and photodetector in the mid-infrared region.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据