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Updated: Jul 14, 2026

Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces
09:33

Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces

Published on: June 7, 2019

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双频极化控制的超表面具有独立的幅度相编码,用于多功能光束形成

Fan Wu, Zuntian Chu, Xinqi Cai

    Optics express
    |January 29, 2025
    PubMed
    概括

    这项研究引入了一种新型的双频段超表面,可实现独立的振幅相编码,用于先进的光束操纵. 这种数字编码的超表面可以灵活地控制不同频率和偏振的电磁波.

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    Demonstration of Spin-Multiplexed and Direction-Multiplexed All-Dielectric Visible Metaholograms08:48

    Demonstration of Spin-Multiplexed and Direction-Multiplexed All-Dielectric Visible Metaholograms

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    Polar Coordinates: Problem Solving01:27

    Polar Coordinates: Problem Solving

    Directional radiation patterns are central to antenna analysis, as they illustrate how signal strength varies with direction. These patterns are often modeled using polar plots, where the radial distance from the origin represents signal intensity at a given angle. A commonly used idealized form is the four-lobed rose curve, which captures the concept of directional beams in a simplified mathematical form.The four-lobed rose curve, described by r = cos⁡(2θ), features four symmetric lobes, each...