Transmission‐Reflection Controls and Polarization Controls of Electromagnetic Holograms by a Reconfigurable Anisotropic Digital Coding Metasurface

Wu, Liang; Feng, Hui; Wu, Rui Yuan; Xiao, Qiang; Gou, Ying; Wang, Meng; Wang, Zheng Xing; Bao, Lei; Wang, Hai Lin; Qing, Ye Ming; Cui, Tie Jun

doi:10.1002/adom.202001065

Cited by 84 publications

(44 citation statements)

References 58 publications

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“…A kind of reconfigurable anisotropic holographic metasurfaces was proposed to control independently the transmission and reflection modes of the EM waves under different polarizations. [32] Interestingly, fullstate synthesis of EM fields was proposed by using high efficiency phase-only metasurfaces. [33] More recently, Qu et al demonstrated a re-programmable metasurface that can produce arbitrary holographic images for optical encryption.…”

Section: Electromagnetic Holographymentioning

confidence: 99%

Radiation‐Type Metasurfaces for Advanced Electromagnetic Manipulation

Tian

Cai

et al. 2021

Adv Funct Materials

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Manipulating the phase, polarization, and energy distribution of electromagnetic (EM) waves has facilitated numerous applications. Nowadays, metasurface provides an innovational scenario to carry out more promising and advanced control of EM waves. However, it is a great challenge to manipulate polarization, phase, and energy distribution simultaneously with a low profile. Herein, a class of single-layer radiationtype metasurfaces to achieve advanced EM manipulation is proposed. Desired EM functions can be achieved based on the geometric phase and resonant phase. Such metasurfaces enable the capability to manipulate arbitrary phases and linear polarization states simultaneously. Moreover, arbitrary energy distributions can be controlled. As examples of potential applications, three advanced EM functional devices are presented: a novel multiple-input multiple-output antenna with efficient crosstalk suppression and information encryption, an energy-controllable router, and a metasurface holographic imaging based on power transmission algorithm, respectively. The proposed strategy may open up an alternative way of controlling EM waves with advanced performance and minimalist complexity. Moreover, it may lead to advances in information encoding and cryptography.

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Section: Electromagnetic Holographymentioning

confidence: 99%

Radiation‐Type Metasurfaces for Advanced Electromagnetic Manipulation

Tian

Cai

et al. 2021

Adv Funct Materials

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“…Due to the sub-wavelength characteristics of metasurface elements, holographic images with high resolution are achieved, as shown in Figure 8c. Another p-i-n diode loaded reconfigurable anisotropic has been proposed to independently control not only the near/far-field pattern but also the reflection and transmission modes of different incident electromagnetic wave polarizations, as shown in Figure 8d [123]. Both the numerical simulations and experimental measurements show that different holographic images can be achieved under vertical and horizontal linear polarizations, respectively, and that operation in the transmission mode or reflection mode can be controlled in real-time.…”

Section: Reconfigurable Metasurface Hologramsmentioning

confidence: 99%

Metasurface Holography in the Microwave Regime

Shang

Wang

et al. 2021

Photonics

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Hologram technology has attracted a great deal of interest in a wide range of optical fields owing to its potential use in future optical applications, such as holographic imaging and optical data storage. Although there have been considerable efforts to develop holographic technologies using conventional optics, critical issues still hinder their future development. A metasurface, as an emerging multifunctional device, can manipulate the phase, magnitude, polarization and resonance properties of electromagnetic fields within a sub-wavelength scale, opening up an alternative for a compact holographic structure and high imaging quality. In this review paper, we first introduce the development history of holographic imaging and metasurfaces, and demonstrate some applications of metasurface holography in the field of optics. We then summarize the latest developments in holographic imaging in the microwave regime. These functionalities include phase- and amplitude-based design, polarization multiplexing, wavelength multiplexing, spatial asymmetric propagation, and a reconfigurable mechanism. Finally, we conclude briefly on this rapidly developing research field and present some outlooks for the near future.

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“…Then, differently polarized converters have been proposed based on the metasurface. Some works were proposed to realize LP to CP for the entire microwave frequency band, [22][23][24][25][26] while others can achieve polarization conversion within terahertz band (THz). [27][28] For enhancing the conversion bandwidth, various metasurfaces have been designed to manipulate the polarizations of transmissive waves.…”

Section: Introductionmentioning

confidence: 99%

Quad‐Band Transmissive Metasurface with Linear to Dual‐Circular Polarization Conversion Simultaneously

Han

et al. 2021

Advcd Theory and Sims

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Metasurface is a momentous periodic or aperiodic microstructure which has capabilities in controlling polarization of electromagnetic waves. To realize polarization controlling, many microstructures have been designed to achieve the function. However, multi-band linear to dual-circular polarization converter is rarely proposed and designed in the last few years. Here, a quad-band dual-circular transmissive metasurface (QCT-MS) is proposed to manipulate polarization of transmissive wave. QCT-MS is designed as a three-layer microstructure, with substrate in the middle and two metal patches in the shape of bi-symmetrical arrow on both sides. The proposed microstructure manipulates linear polarization waves to dual-circular polarization waves in different frequency bands with x-polarized or y-polarized incident waves. The experimental and simulated results reveal that left-hand circularly polarized waves can be realized in 3.14-3.32, 4.41-4.46, and 14.82-16.05 GHz while the right-hand circularly polarized waves can be achieved from 9.45 to 10.12 GHz for QCT-MS with x-polarized incidences. Moreover, the simulated results also demonstrate its characteristics of wide-angle transmission and periodic changes. The proposed transmissive metasurface can be utilized in multiband communication and multifunctional dual-circularly polarized antenna systems.

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Transmission‐Reflection Controls and Polarization Controls of Electromagnetic Holograms by a Reconfigurable Anisotropic Digital Coding Metasurface

Cited by 84 publications

References 58 publications

Radiation‐Type Metasurfaces for Advanced Electromagnetic Manipulation

Radiation‐Type Metasurfaces for Advanced Electromagnetic Manipulation

Metasurface Holography in the Microwave Regime

Quad‐Band Transmissive Metasurface with Linear to Dual‐Circular Polarization Conversion Simultaneously

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