High numerical aperture microwave metalens
WebFeb 28, 2024 · This super-resolution metalens has a numerical aperture of as large as 0.97, a focal length of 38.0 µm, a radius of 151.9 µm, and a field of view of 4° that enables … WebApr 7, 2024 · Our experimental prototype enables microwave focusing with large efficiency (η = 0.479) and near-unity numerical aperture (NA = 0.98), yielding a sharp focal point at …
High numerical aperture microwave metalens
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WebMar 23, 2024 · A metalens is a two-dimensional (2D) metasurface (1−3)that controls the amplitude, polarization, and phase of the impinging light using engineered sub-wavelength resonators, also known as meta-atoms (MA), judicially arranged in periodic or … WebIn the design method of the present embodiment, by forming the meta-grating unit of high numerical aperture meta-lens to carry out parameter design, precise arrangement, so that high numerical aperture meta-lens can realize high focusing efficiency, high spot quality Focusing, and help the area of the high numerical aperture metalens can be increased to …
WebUpgrade Your Kitchen With an Over-the-Range Microwave. Looking to upgrade your kitchen with a new over-the-range microwave? With the latest styles and brands plus how-to … WebMar 14, 2024 · Large Numerical Aperture Metalens with High Modulation Transfer Function. Jian Zhang, Xiong Dun*, Jingyuan Zhu, Zhanyi Zhang, Chao Feng, Zhanshan Wang, Wolfgang Heidrich, and Xinbin Cheng*，ACS Photonics，2024. 下一条： Anisotropic Excitons Reveal Local Spin Chain Directions in a van der Waals Antiferromagnet.
WebA circular aperture made of PEC (Perfect Electrical Conductor) is placed between the source and the metalens to limit the area of injection. The nearfiled results from the “field” monitor are shown below: The incident field is mostly blocked by the PEC (Perfect Electrical Conductor) aperture. Webbroadband microwave metalens (frequency range from 8.0 to 10.5 GHz) with a relatively high-efficiency above 40% and a large NA of more than 0.6 is presented. The metalens is …
WebNov 12, 2024 · Herein, an ultra-thin broadband microwave metalens (frequency range from 8.0GHz to 10.5GHz) with both high-efficiency above 40% and large NA more than 0.6 is …
Webplanar lens18, 28-47 (metalens). Due to their planar configuration, metalenses have potential applications in several multidisciplinary areas including imaging, spectroscopy, lithography, and laser fabrication. High numerical aperture (NA) and high efficiency metalenses have been demonstrated in both near infrared39 and visible40, 43. It has ... drow eye patchWebDec 1, 2024 · High numerical aperture and large focusing efficiency metalenses in the microwave spectrum are studied. Numerical and experimental results demonstrate a high … collective imaginationWebJan 6, 2024 · Herein, an ultra-thin broadband microwave metalens (frequency range from 8.0 to 10.5 GHz) with a relatively high-efficiency above 40% and a large NA of more than … d rowes columbia missouriWebJan 6, 2024 · Herein, an ultra-thin broadband microwave metalens (frequency range from 8.0 to 10.5 GHz) with a relatively high-efficiency above 40% and a large NA of more than 0.6 is presented. The metalens is also fabricated and the measurement results agree with the simulations very well. drow fashionWebApr 26, 2024 · In this paper, we design a double-layer metalens to achieve achromatic imaging over a field of view (FOV) of 60° in the visible light range of 470 nm to 650 nm, and its performance is verified by numerical simulations. The numerical aperture (NA) of the metalens is 0.61 and the average focusing efficiency is > 50% at normal incidence. collective identity developmentWebDec 1, 2024 · High numerical aperture (NA) metalenses with large focusing efficiency are crucial for various applications in modern optics and photonics, particularly in high resolution imaging, high... drow fanfictionWebUltrathin and high-efficiency Pancharatnam–Berry phase metalens for millimeter waves ... examples of PBM working at the microwave or terahertz Therefore, bi-layer PBM structures stand out as the preferred (THz) range for functionalities such as beam steering13, candidates for leveraging the fabrication constraints. ... numerical aperture of ... drow fantasy art