High numerical aperture microwave metalens

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August undefined, 2024

WebApr 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. WebAn ultra-thin high-efficiency plasmonic metalens with symmetric split ring transmitarray metasurfaces Yong-Qiang Liu, Wenqiang Chen, Xuemei Du, Yingchao Shu, Lujun Wu, Zhongru Ren, Hongcheng Yin, Jinhai Sun, Kainan Qi, Yongxing Che, Liangsheng Li; Affiliations ...

High numerical aperture and large focusing efficiency metalens …

WebShop Best Buy for microwaves. Whether you have a full kitchen or a countertop in a dorm room, we can help you find the best microwave for your cooking needs. 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 … biofit agenda

Large Numerical Aperture Metalens with High Modulation …

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 … WebApr 11, 2024 · In this work, a continuously varifocal and broadband achromatic metalens (CVBAM) for converging THz waves is proposed. The semiconductor indium antimonide (InSb) with tunable EM responses is selected to accomplish the phase compensation required by CVBAM. At initial temperature of 180 K, numerical results indicate that the … WebJan 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. biofit amazon reviews

Polarization independent and broadband achromatic metalens in ...

High numerical aperture microwave metalens

WebDec 1, 2024 · High numerical aperture and large focusing efficiency metalenses in the microwave spectrum are studied. Numerical and experimental results demonstrate a high … 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 …

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WebNov 14, 2024 · Here, we demonstrate a polarization-insensitive, all-dielectric metalens operating at LWIR. The metalens has a numerical aperture of 0.6 at the wavelength λ = … WebHigh NA (close to 0.9 or above) metalens with a deep sub-wavelength focusing spot is an important metadevice in the modern optics and photonics. In this paper, a four-layer …

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. WebMeanwhile, an orthogonal linear polarization multiplexing metalens, as another kind of metalens, has also been developed [6,31,32]. For example, a polarization-multiplexed metalens with a large numerical aperture was designed, which can independently control x- and y-polarized light . Even though the two kinds of orthogonal polarization ...

WebMar 14, 2024 · The numerical aperture (NA) of a lens determines its ability to focus light and its resolving capability. ... A Metalens with a Near-Unity Numerical Aperture Nano Lett. 2024 Mar 14;18(3) :2124 ... In contrast, metasurfaces allow the lens designer to circumvent those issues producing high-NA lenses in an ultraflat fashion. However, so far, these ... 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 10, 2024 · what: The authors propose a dielectric metalens for the diffraction of angular Bessel functional phase modulated vector field under the inspiration of the tightly autofocusing property of a radially polarized high-order Bessel beam. this kind of metalens with a numerical aperture (NA) of 0.9 the linearly polarized light is converted into a ...

WebThe metalens has focusing efficiencies higher than 72% and exhibits nearly diffraction-limited focusing at long-wavelength infrared frequency. In addition, it is easy to realize … daikin 2mxs40bvmb scheda tecnicaWebJan 1, 2024 · a, Schematic of a metalens element. The element consists of one or more TiO 2 nanofins of varying dimensions but equal height h = 600 nm, evenly spaced by a distance p = 400 nm. The gap between... daikin 2mxs40h3v1b scheda tecnicaWebOver-the-Range Microwave Oven with EasyClean®. Model# LMV1764ST Color Stainless Steel. Store Specials. In Stock. Rebates Available. Save $53 Was $296. $243. biofit bottleWebMar 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 … daikin 2 ton 5 star inverter acWebplanar 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 ... biofit braWebMar 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. biofit bowling green ohioWebBroadband, large-numerical-aperture and high-efficiency microwave metalens by using a double-layer transmissive metasurface R ecently, metalens has become a frontier and hot topic in the field of ... biofit buy