Polarization-Selective Bidirectional Absorption Based on a Bilayer Plasmonic Metasurface.

Tong Li, Bin-Quan Chen, Qian He, Li-An Bian, Xiong-Jun Shang, Guo-Feng Song

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Article in Materials (Basel, Switzerland), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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6 authors.

Tong LiHunan Provincial Key Laboratory of Flexible Electronic Materials Genome Engineering, Changsha University of Science and Technology, Changsha 410004, China.

Bin-Quan ChenHunan Provincial Key Laboratory of Flexible Electronic Materials Genome Engineering, Changsha University of Science and Technology, Changsha 410004, China.

Qian HeHunan Provincial Key Laboratory of Flexible Electronic Materials Genome Engineering, Changsha University of Science and Technology, Changsha 410004, China.

Li-An BianHunan Provincial Key Laboratory of Flexible Electronic Materials Genome Engineering, Changsha University of Science and Technology, Changsha 410004, China.

Xiong-Jun ShangHunan Provincial Key Laboratory of Flexible Electronic Materials Genome Engineering, Changsha University of Science and Technology, Changsha 410004, China.

Guo-Feng SongInstitute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China.

Funding

Education Department of Hunan Province 19C0035Hunan University Student Innovation Project 202010536051Natural Science Foundation of Hunan Province 2020JJ5565Open Research Fund of Hunan Provincial Key Laboratory of Flexible Electronic Materials Genome Engineering Grant No. 201909The Strategic Priority Research Program of Chinese Academy of Sciences Grant No. XDB43010000

6 · The paper itself

Abstract

We propose an alignment-free and polarization-selective bidirectional absorber composed of a one-dimensional bilayer Au grating array buried in a silicon nitride spacer. The absorptivity of the designed structure is more than 95% (77%) under normal forward (backward) TM-polarized light incidence, and is more than 80% (70%) within a forward (backward) incident angle up to 30°. The great bidirectional absorption performance is illustrated by the resonance coupling of the surface plasmon polaritons (SPPs) resonance, the propagating surface plasmon (PSP) resonance and the localized surface plasmon (LSP) resonance under TM-polarized wave illumination. Moreover, the excitation of the Fano-like resonance mode of the proposed metasurface can produce two significantly different peaks in the absorption spectrum under the oblique TM-polarized incidence, which is beneficial for the plasmon-sensing application. Therefore, the proposed bidirectional metasurface absorber can be a candidate in the application of optical camouflage, thermal radiation, solar cells and optical sensing.

Indexed as

absorbmetasurfacepolarization-selectivesurface plasmons

Identifiers

PMID33238483

DOI10.3390/ma13225298

PMCPMC7700349

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