Work

Mid-infrared computational spectroscopy scheme via metasurface filter arrays and physics-data dual-driven spectral reconstruction

Year: 2026

Type: article

Abstract: This study proposes a mid-infrared (MIR) spectral sensing scheme based on a metasurface filter array integrated with a physics-data dual-driven algorithm. Two types of metasurface structures, namely the silicon-based gold micro-hole array (Si-Au-MHA) and the silicon-based gold micro-pillar array (Si-Au-MPA), were designed through simulation to determine their structural parameters for fabrication, aiming to achieve spectral control across the 3-12 μm band. Samples were fabricated, and the transmission spectra were measured and validated. Furthermore, a physics-data dual-driven spectral reconstruction method combining regularized physical constraint with a neural network was introduced, demonstrating superior performance in both amplitude and spectral profile compared to purely physics-based or data-driven approaches. This work provides a viable solution for portable MIR spectral sensing applications.

Source: Optics Express

DOI: 10.1364/oe.590141

Authors: Tianzhen Ma, Zhijing He, Ruhua Jin, Chunlai Li, Liyin Yuan

Institutions: Shanghai Institute of Technical Physics, University of Chinese Academy of Sciences

Language: English

Topic: Metamaterials and Metasurfaces Applications

Subfield: Electronic, Optical and Magnetic Materials

Field: Materials Science

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,270

Funder: National Natural Science Foundation of China