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

Guanxing Zang,

Jing Ren, Yuzhi Shi

et al.

ACS Nano, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 26, 2024

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

Language: Английский

All-optical analog differential operation and information processing empowered by meta-devices DOI
Chen Zhou, Yongtian Wang, Lingling Huang

et al.

Nanophotonics, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 24, 2025

Abstract The burgeoning demand for high-performance computing, robust data processing, and rapid growth of big necessitates the emergence novel optical devices to efficiently execute demanding computational processes. field meta-devices, such as metamaterial or metasurface, has experienced unprecedented over past two decades. By manipulating amplitude, phase, polarization, dispersion light wavefronts in spatial, spectral, temporal domains, viable solutions implementation all-optical analog computation information processing have been provided. In this review, we summarize latest developments emerging trends meta-devices innovative platforms spatial differentiators processing. Based on general concepts Fourier transform Green’s function, analyze physical mechanisms application amplitude differentiation, phase differentiation their applications image edge detection, enhancement, beam shaping. Finally, explore current challenges potential provide perspectives future research directions possible developments.

Language: Английский

Citations

1
High-performance achromatic metalens in the long-wavelength infrared regime DOI
Tianqi Gu, Yihao Zhang,

Hangbin Cai

et al.

Physics Letters A, Journal Year: 2025, Volume and Issue: unknown, P. 130430 - 130430

Published: March 1, 2025

Language: Английский

Citations

0
Compact Near-Infrared Imaging Device Based on a Large-Aperture All-Si Metalens DOI Creative Commons
Zhixi Li, Wei Liu, Yubin Zhang

et al.

Nanomaterials, Journal Year: 2025, Volume and Issue: 15(6), P. 453 - 453

Published: March 17, 2025

Near-infrared imaging devices are extensively used in medical diagnosis, night vision, and security monitoring. However, existing traditional rely on a bunch of refracting lenses, resulting large, bulky systems that restrict their broader utility. The emergence flat meta-optics offers potential solution to these limitations, but research compact integrated based near-infrared is insufficient. In this study, we propose an NIR camera utilizes large-size metalens with silicon nanostructure high transmission efficiency. Through the detection target animal plant tissue samples, ability capture biological structures performance was verified. further integration device, device significantly reduces size weight system optimizes aperture achieve excellent image brightness contrast. Additionally, venous human skin shows for biomedical applications. This has important role promoting miniaturization lightweight optical devices, which expected be applied testing vision imaging.

Language: Английский

Citations

0
Metasurface-Refractive Hybrid Lens Modeling with Vector Field Physical Optics DOI Creative Commons
Ko-Han Shih, C. Kyle Renshaw

Photonics, Journal Year: 2025, Volume and Issue: 12(4), P. 401 - 401

Published: April 21, 2025

Metasurfaces (MSs) have emerged as a promising technology for optical system design. When combined with traditional refractive optics, MS-refractive hybrid lenses can enhance imaging performance, reduce aberrations, and introduce new functionalities such polarization control. However, modeling these requires advanced simulation techniques that usually go beyond conventional raytracing tools. This work presents physical optics framework lenses. We ray-wave method integrates multiple propagation to account vector wave through various elements. At the center of proposed is Gaussian decomposition beam optics. Ray-path diffraction automatically considered in this method, complex input wavefront be modeled well. Several are integrated ensure accuracy decomposing an incoming into beamlets, adaptive consideration local principal curvatures best-fit width estimation from covariance matrix. To demonstrate effectiveness our we apply it several lens designs, including polarization-sensitive MSs aberration-correcting systems.

Language: Английский

Citations

0
Broadband Achromatic Hybrid Metalens Module with 100° Field of View for Visible Imaging DOI Creative Commons
Peixuan Wu, Xingyi Li,

Yuan-Yuan Xing

et al.

Sensors, Journal Year: 2025, Volume and Issue: 25(10), P. 3202 - 3202

Published: May 20, 2025

Conventional metalenses struggle with chromatic aberration and narrow field of view (FOV), making it challenging to meet the dispersion requirements for large apertures compensate off-axis aberrations wide FOV. Here, we demonstrate a hybrid metalens module consisting five refractive plastic lenses polarization-insensitive achieve broadband achromatic imaging within 400–700 nm FOV up 100°. The system exhibits negligible variation in focal length (~1.2%) across visible range (460–656 nm) consistently achieves modulation transfer function (MTF) values > 0.2 at 167 lp/mm all wavelengths incident angles. We also integrated lens modules that capture high-quality images from distances ranging between 0.5 4 m without post-processing, showcasing its potential compact, wide-angle optical systems.

Language: Английский

Citations

0
Design of a polarization-insensitive broadband achromatic metalens for mid-wave infrared detector DOI
Fanlong Meng,

J Liu,

Jia Xin Yue

et al.

Optics Letters, Journal Year: 2024, Volume and Issue: 49(19), P. 5563 - 5563

Published: Sept. 12, 2024

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

Language: Английский

Citations

2
Transforming High-Resolution Imaging: A Comprehensive Review of Advances in Metasurfaces and Metalenses DOI
Nikolay L. Kazanskiy, Svetlana N. Khonina, Muhammad A. Butt

et al.

Materials Today Physics, Journal Year: 2024, Volume and Issue: unknown, P. 101628 - 101628

Published: Dec. 1, 2024

Language: Английский

Citations

1
Inverse Design of Aberration-Corrected Hybrid Metalenses for Large Field of View Thermal Imaging Across the Entire Longwave Infrared Atmospheric Window DOI

Guanxing Zang,

Jing Ren, Yuzhi Shi

et al.

ACS Nano, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 26, 2024

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

Language: Английский

Citations

0