High numerical aperture microwave metalens
WebFeb 28, 2024 · The achromatic subdiffraction lens with large numerical aperture (NA) is of significant importance in optical imaging, photolithography, spectroscopy, and nanophotonics. However, most of the previous… PDF Broadband achromatic metalens for linearly polarized light from 450 to 800 nm. Mian Liu, Jianjun Cao, N. Xu, Ben-Xin Wang … WebDec 1, 2024 · High numerical aperture and large focusing efficiency metalenses in the microwave spectrum are studied. Numerical and experimental results demonstrate a high …
High numerical aperture microwave metalens
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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. WebLearn more about our low-latency, cost-effective wireless microwave backhaul solutions, tailored to your business's needs.
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 … WebJan 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...
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 … 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 …
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 ...
WebDec 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... taj agro industries llpWebJan 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 … taiwanese assault rifleWebOct 6, 2024 · By generating 1D phase arrangement at the nanoscale, a miniature on-chip metalens with µ ∼ 3 × 0.5 µ m dimension could achieve light focusing on a 2D waveguide surface with the flexibility to design scalable focal … エムピウWebDec 1, 2024 · High numerical aperture and large focusing efficiency metalenses in the microwave spectrum are studied. Numerical and experimental results demonstrate a high … エムフロウ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 … エムユーWebThe numerical aperture (NA) of a lens determines its focusing resolution capability and the maximum light collection or emission angle. In this Letter, an ultrathin high NA metalens … エムフロー リサWebfar, a five-layer microwave metalens with high ef ficiency of about 80% but a small NA =0.5 is designed.9) Also, high NA above 0.9 microwave metalenses with a peak focusing ef fi-ciency of around 50% is demonstrated by using a four-layer transmissive metasurface.10,11) However, the working band- taizhou taikong industrial co. ltd