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Optimization for Si Nano-Pillar-Based Broadband Achromatic Metalens
IEEE Photonics JournalAn innovative optimization algorithm, named the hybrid particle swarm and genetic algorithm (PSO_GA), is proposed for designing broadband achromatic metalenses. A database is first constructed by scanning the parameters of the unit cell of the metalenses
Zhaohui Li, Yihao Lv
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On-chip integration of achromatic metalens arrays. [PDF]
Nat CommunBroadband achromatic metalenses and metalens arrays hold promise for enabling high-performance optical imaging in a compact form factor. Conventional visible-light achromatic metalenses are composed of transparent and high-refractive-index TiO2 or GaN nanopillars, but are strongly limited in mainstream silicon-based complementary metal-oxide ...
Zhang Y +9 more
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An unconventional optical sparse aperture metalens
AIP Advances, 2022 Metalens consisting of arrays of subwavelength nanostructures with ultrathin, lightweight, and tailorable characteristics have been in the spotlight to develop next-generation optical elements beyond existing refractive or diffractive optics.
Yangeng Dong +7 more
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Results in Physics, 2023 Multifunctional metalens with tunable focus and intensity is powerfully attractive for compact planar optics. However, the limited degree of freedom in the single-layer metasurface design makes it difficult to satisfy more complicated functionalities ...
Zhipeng Zhang +9 more
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Doublet Metalens with Simultaneous Chromatic and Monochromatic Correction in the Mid-Infrared
Sensors, 2022 Metalenses provide a powerful paradigm for mid-infrared (MIR) imaging and detection while keeping the optical system compact. However, the design of MIR metalenses simultaneously correcting chromatic aberration and off-axis monochromatic aberration ...
Yi Zhou +5 more
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Robust Achromatic All-Dielectric Metalens for Infrared Detection in Intelligent Inspection
Sensors, 2022 Metalens has the advantages of high design freedom, light weight and easy integration, thus provides a powerful platform for infrared detection. Here, we numerically demonstrated a broadband achromatic infrared all-dielectric metalens over a continuous ...
Wenrong Si +4 more
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Metalens for Electric Space Propulsion
IEEE AccessThis work introduces a metalens designed to focus electromagnetic power in a magnetized plasma, primarily applied in electrodeless space propulsion. The focusing capability relies on the misalignment between the wavevector and the Poynting vector in a ...
Magarotto, Mirko +4 more
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Multifocal metalens for detecting several topological charges at different wavelengths
Компьютерная оптика, 2023 A combined high-aperture metalens in a thin silicon nitride film, which consists of two inclined sector metalens, is considered. Each sector metalens consists of a set of binary subwavelength gratings. The diameter of the lens is 14 μm. It has been shown
A.G. Nalimov, V.V. Kotlyar
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Nanomaterials, 2022 A combined high-aperture metalens in a thin silicon nitride film that consists of two tilted sectored metalenses is considered. Each sector of the metalens consists of a set of binary subwavelength gratings. The diameter of the metalens is 14 μm. Using a
Anton Nalimov, Victor Kotlyar
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Phase characterisation of metalenses
Light: Science & Applications, 2021 Metalenses have emerged as a new optical element or system in recent years, showing superior performance and abundant applications. However, the phase distribution of a metalens has not been measured directly up to now, hindering further quantitative ...
Maoxiong Zhao +16 more
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