Achromatic and Coma-Corrected Hybrid Meta-Optics for High-Performance Thermal Imaging

Liu, Mingze; Zhao, Weixing; Wang, Yilin; Huo, Pengcheng; Zhang, Hui; Lu, Yan-qing; Xu, Ting

doi:10.1021/acs.nanolett.4c01218

Nano Lett.

2024

DOI: 10.1021/acs.nanolett.4c01218

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Achromatic and Coma-Corrected Hybrid Meta-Optics for High-Performance Thermal Imaging

Mingze Liu,

Weixing Zhao,

Yilin Wang

et al.

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Cited by 3 publications

References 47 publications

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Transforming high-resolution imaging: A comprehensive review of advances in metasurfaces and metalenses

Kazanskiy,

Khonina,

Butt

2025

Materials Today Physics

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Transforming high-resolution imaging: A comprehensive review of advances in metasurfaces and metalenses

Kazanskiy,

Khonina,

Butt

2025

Materials Today Physics

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Inverse Design of Aberration-Corrected Hybrid Metalenses for Large Field of View Thermal Imaging Across the Entire Longwave Infrared Atmospheric Window

Zang,

Ren,

Shi

et al. 2024

ACS Nano

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Long wave infrared (LWIR) cameras play a pivotal role across diverse applications due to their distinctive features. The growing demand for highperformance thermal imaging optics, characterized by a broad working bandwidth, large field of view (FOV), aberration-free design, lightweight construction, compactness, and cost-effectiveness, poses significant challenges for LWIR lens design. Here, we propose an inverse design method for LWIR hybrid metalenses, specifically aiming to achieve aberration-corrected thermal imaging with both a large FOV and a broad working bandwidth. Our approach involves optimizing phase profiles of metalens' unit cells guided by a loss function that compares the hybrid lens design to diffraction-limited results for various incident angles and wavelengths. As a result, we demonstrate an aberration-corrected thermal camera with a 30°FOV and an achromatic working bandwidth spanning the entire LWIR atmospheric window (8 to 14 μm). Significantly, the total optical path length, the entrance pupil to the sensor plane of the charge-coupled device (CCD), is a mere 13.6 mm. Our work merits advantages in the FOV, working bandwidth, and compactness, which surpass state-of-the-art LWIR hybrid metalens designs and find numerous imaging and sensing applications.

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Design of a polarization-insensitive broadband achromatic metalens for mid-wave infrared detector

Long Meng,

Le Liu,

Xin Yue

et al. 2024

Opt. Lett.

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Metalenses, boasting outstanding focusing efficiency and high-resolution imaging capabilities, have generated widespread usage in fields such as integrated optics, achromatic imaging, and optical holography. In this study, we have developed a broadband achromatic metalens within the detection range from 3 to 5 µm, and it has a numerical aperture (NA) of 0.71 with a remarkable maximum focusing efficiency of 63.8% at the focal plane within the specified bandwidth. We have further delved into the dispersion control mechanism that combines the geometric and transmission phases and optimized the constructed phase response simulation database using the particle swarm optimization (PSO) algorithm, ensuring a precise phase matching between the actual wavefront and the ideal focusing wavefront. This metalens with its ability to expand the array size has the potential to create a compact infrared imager, which holds significant importance in achieving efficient detection and integration within infrared detectors.

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Achromatic and Coma-Corrected Hybrid Meta-Optics for High-Performance Thermal Imaging

Cited by 3 publications

References 47 publications

Transforming high-resolution imaging: A comprehensive review of advances in metasurfaces and metalenses

Transforming high-resolution imaging: A comprehensive review of advances in metasurfaces and metalenses

Inverse Design of Aberration-Corrected Hybrid Metalenses for Large Field of View Thermal Imaging Across the Entire Longwave Infrared Atmospheric Window

Design of a polarization-insensitive broadband achromatic metalens for mid-wave infrared detector

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