Non-polarized and ultra-narrow band filter in MIR based on multilayer metasurface.

Wentian Chu, Xuepeng Xu, Chunfeng Cai, Huizhen Wu, Gang Bi

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In one paragraph

Article in Heliyon, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

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1citing papers in PubMed

–field-weighted citation impact

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3 · Its place in the literature

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1 citing paper in PubMed.

The rise of electrically tunable metasurfaces.Science advances · 2024
Review

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5 · Who and what money

Authors and funding

5 authors.

Wentian ChuSchool of Information and Electrical Engineering, Hangzhou City University, No. 48, Huzhou Street, Hangzhou, 310015, China.

Xuepeng XuSchool of Information and Electrical Engineering, Hangzhou City University, No. 48, Huzhou Street, Hangzhou, 310015, China.

Chunfeng CaiFundation Science Education Center, Hangzhou City University, No. 48, Huzhou Street, Hangzhou, 310015, China.

Huizhen WuDepartment of Physics, Zhejiang University, No. 38, Zheda Road, Hangzhou, 310027, China.

Gang BiSchool of Information and Electrical Engineering, Hangzhou City University, No. 48, Huzhou Street, Hangzhou, 310015, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We propose an ultra narrow-band filter in the mid infrared region (MIR) using artificial metamaterials (AMM), which is suitable for the design of on-chip photonic spectrometers. 2-D rectangular holes with a cross-like layerout are adopted to enhance the filter's efficiency and precision. Considering the penetration depth of electromagnetic (EM) waves in the metal film, we opt for multi-layer films composed of metal layers and dielectric layers, instead of a single metal layer, to improve the structure's performance in the MIR. This multilayer configuration significantly enhances the efficiency and precision of the AMM structures in the MIR. The transmission peak, with a full width at half maximum (FWHM) of 30 nm, can be achieved and tuned in the wavelength range from 3.0 μm to 10.0 μm by changing the periods of the unit cell (enlarging the unit cell from 3.0 to 10.0 μm). The proposed AMM structures, with tunable narrow band transmittance in MIR, exhibit promising potential in the fabrication of narrow band photonic detectors and on-chip spectrometers.

Indexed as

Artificial metamaterialsMid infrared regionUltra-narrow band filter

Identifiers

PMID37954308

DOI10.1016/j.heliyon.2023.e21303

PMCPMC10632699

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LicenceCC BY-NC-ND

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