Dual-Wavelength Metalens Design for Compact LWIR and MWIR Imaging Systems.

Ting Liu, Kun Zheng, Shibin Jiang, Zhirui Zeng, Guanxing Zang, Wei Huang, Weiming Zhu

Abstract read

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Article in Sensors (Basel, Switzerland), 2026. 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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5 · Who and what money

Authors and funding

7 authors.

Ting LiuSchool of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China.

Kun ZhengSchool of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China.

Shibin JiangSchool of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China.

Zhirui ZengSchool of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China.

Guanxing ZangHisense Laser Display Co., Ltd., 399 Songling Road, Qingdao 266555, China.

Wei HuangKey Laboratory of Multifunctional Nanomaterials and Smart Systems, Key Laboratory of Semiconductor Display Materials and Chips, Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences (CAS), Suzhou 215123, China.

Weiming ZhuSchool of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China.

Funding

National Natural Science Foundation of China Grant Nos. 62475033

6 · The paper itself

Abstract

Multispectral infrared imaging systems that simultaneously operate in the long-wave infrared (LWIR) and mid-wave infrared (MWIR) bands offer significant advantages for target detection and recognition. However, conventional infrared optical systems rely on bulky multi-element lens assemblies to accommodate incident wavelengths of LWIR and MWIR bands, making it challenging for compact thermal optics design. Here, we propose and experimentally demonstrate an inverse designed infrared metalens capable of simultaneously focusing LWIR and MWIR radiation at wavelengths of 9.5 μm and 4.75 μm with a focal length variation of 1%. In the experiment, the proposed metalens with detector enables a dual-wavelength thermal imaging with a compact size (26 × 26 × 18 mm

Indexed as

dual-wavelength metalensinverse designLWIR and MWIR opticsthermal imaging

Identifiers

PMID41829499

DOI10.3390/s26051536

PMCPMC12987126

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