在全空间对圆极化波同时进行振幅和相位控制的透射-反射-集成元表面

IF 9.8 1区 物理与天体物理 Q1 OPTICS
Shi Sun, Hui Feng Ma, Yue Teng Chen, Tie Jun Cui
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引用次数: 0

摘要

近年来,利用元表面操纵圆极化(CP)波的振幅和相位引起了广泛关注。然而,目前的大多数研究工作仅限于在反射或透射空间中操作,振幅操纵主要通过极化转换或电阻损耗来实现,这将不可避免地导致跨极化污染和能量浪费。这里提出了一种能在全空间同时操纵 CP 波振幅和相位的透射反射一体化元面,它不仅能实现透射和反射 CP 波的任意振幅分配,还能独立操纵它们的相位响应。作为概念验证,设计并演示了两个集成元表面,包括一个同时具有低侧裂水平和低交叉偏振水平的 CP 反射阵列天线,以及一个可以在聚焦反射波的同时任意控制发射衍射波强度的元光栅。模拟和测量结果都与理论预测非常吻合,证明了所提出的元面具有在全空间控制 CP 波的强大能力,有望应用于未来的卫星通信、光子元器件等领域。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Transmission–Reflection-Integrated Metasurface with Simultaneous Amplitude and Phase Controls of Circularly Polarized Waves in Full Space

Transmission–Reflection-Integrated Metasurface with Simultaneous Amplitude and Phase Controls of Circularly Polarized Waves in Full Space

Transmission–Reflection-Integrated Metasurface with Simultaneous Amplitude and Phase Controls of Circularly Polarized Waves in Full Space

In recent years, manipulations of amplitudes and phases of circularly polarized (CP) waves using metasurfaces have attracted significant attention. However, most of the current works are limited to operating in reflection or transmission space, and the amplitude manipulations are mainly achieved through polarization conversion or resistive loss, which will inevitably lead to cross-polarization pollution and energy waste. Here, a transmission–reflection-integrated metasurface that can manipulate the amplitudes and phases of the CP waves simultaneously in full space, which can not only realize arbitrary amplitude allocation of transmitted and reflected CP waves but also independently manipulate their phase responses is proposed. As proofs of concept, two integrated metasurfaces are designed and demonstrated, including a CP reflectarray antenna with simultaneously low side-lobe level and low cross-polarization level, and a meta-grating that can arbitrarily control the intensity of transmitted diffraction wave while focusing the reflected wave. Both simulated and measured results agree very well with the theoretical predictions, demonstrating the powerful ability of the proposed metasurface to control the CP waves in full space, which is promising to be applied in future satellite communications, photonic meta-devices, and so on.

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来源期刊
CiteScore
14.20
自引率
5.50%
发文量
314
审稿时长
2 months
期刊介绍: Laser & Photonics Reviews is a reputable journal that publishes high-quality Reviews, original Research Articles, and Perspectives in the field of photonics and optics. It covers both theoretical and experimental aspects, including recent groundbreaking research, specific advancements, and innovative applications. As evidence of its impact and recognition, Laser & Photonics Reviews boasts a remarkable 2022 Impact Factor of 11.0, according to the Journal Citation Reports from Clarivate Analytics (2023). Moreover, it holds impressive rankings in the InCites Journal Citation Reports: in 2021, it was ranked 6th out of 101 in the field of Optics, 15th out of 161 in Applied Physics, and 12th out of 69 in Condensed Matter Physics. The journal uses the ISSN numbers 1863-8880 for print and 1863-8899 for online publications.
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