Polarization-switchable and wavelength-controllable multi-functional metasurface for focusing and surface-plasmon-polariton wave excitation

Ling, Yonghong; Huang, Lirong; Hong, Wei; Liu, Tongjun; Luan, Jing; Liu, Wenbin; Wang, Ziyong

doi:10.1364/oe.25.029812

Cited by 34 publications

(13 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Recently, metasurfaces (MSs) have attracted growing interests of many researchers due to their planar profile, easy fabrication, and also strong beam control capacity [1][2][3][4][5][6]. For phase gradient metasurfaces (PGMS), proposed by Yu et al [7], a wide range of applications have been found, such as anomalous beam bending [8,9], focusing [7,10], surface-plasmon-polariton coupling [11,12], and polarization manipulation. With the ability of tuning the phase range covering 2π, metasurface can be used to improve performance of antenna.…”

Section: Single-layer Broadband Planar Antenna Using Ultrathin High-ementioning

confidence: 99%

High Performance Metasurface Antennas

Hou¹,

Li²,

Wang³

et al. 2020

Modern Printed-Circuit Antennas

View full text Add to dashboard Cite

Recently, metasurfaces (MSs) have received tremendous attention because their electromagnetic properties can be controlled at will. Generally, metasurface with hyperbolic phase distributions, namely, focusing metasurface, can be used to design high-gain antennas. Besides, metasurface has the ability of controlling the polarization state of electromagnetic wave. In this chapter, we first propose a new ultrathin broadband reflected MS and take it into application for high-gain planar antenna. Then, we propose multilayer multifunctional transmitted MSs to simultaneously enhance the gain and transform the linear polarization to circular polarization of the patch antenna. This kind of high-gain antenna eliminates the feed-block effect of the reflected ones.

show abstract

Section: Single-layer Broadband Planar Antenna Using Ultrathin High-ementioning

confidence: 99%

High Performance Metasurface Antennas

Hou¹,

Li²,

Wang³

et al. 2020

Modern Printed-Circuit Antennas

View full text Add to dashboard Cite

show abstract

“…By selecting the appropriate nanoantennas and arranging them reasonably, different phase gradients can be achieved independently for x ‐ and y ‐polarized waves. As an example, incident waves with x ‐polarization can be converted into SPPs while the y ‐polarized waves can be focused . Besides, the SPP waves can be excited at desired interfaces by tuning the wavelength of incidence due to the satisfaction of different Kerker condition.…”

Section: Prominent Applications In Few‐layer Metasurfacesmentioning

confidence: 99%

Empowered Layer Effects and Prominent Properties in Few‐Layer Metasurfaces

Chen

Zhang

et al. 2019

Advanced Optical Materials

View full text Add to dashboard Cite

applications have been realized based on the metamaterials, such as negative index materials, [3] invisibility cloaks, [4] and zeroindex materials. [5] Nevertheless, metamaterials are usually bulky, difficult to be fabricated, and suffer from high energy losses, which hinder their practical applications in modern photonic systems. In recent years, planar metasurfaces, the 2D equivalents of metamaterials, have attracted plenty of attentions due to their extraordinary abilities in controlling the polarization, amplitude, phase, and dispersion of electromagnetic waves. [6][7][8] Compared with bulk metamaterials, the metasurfaces have many advantages, such as ultrathin thicknesses, low losses, ease of fabrication and integration. Over the past years, single-layer metasurfaces have been widely applied in realizing polarization conversion, [9] beam deflectors, [10,11] metalenses, [12,13] holograms, [14] coding, [15] structural colors, [16,17] nonlinear metasurfaces, [18] and some other applications. Nevertheless, the interactions between lights and ultrathin single-layer metasurfaces are usually limited, resulting in low efficiency and limited controllability in some applications. [19] Moreover, the degrees of freedom for light manipulation provided by a single-layer metasurface are usually not enough in realizing multifunctional devices and some other sophisticated photonic systems.Few-layer metasurface that contains more than one functional layer provides an effective method to overcome the drawbacks of both bulk metamaterials and single-layer metasurfaces. Cheng et al. employed the concept of few-layer metasurfaces to discuss the advantages and emergent functionalities of them in ref. [20]. Few-layer metasurfaces retain the advantages of single-layer metasurfaces and can provide more degrees of freedom to manipulate electromagnetic waves. More importantly, the abundant layer effects, such as the multiple wave interference between layers and the near-field coupling effects, can enhance the interactions between lights and structures and improve the efficiency of few-layer systems. In addition, the combination of different functional layers can produce novel functions that single-layer metasurfaces can hardly realize. For example, by breaking the mirror symmetry along the propagation direction, few-layer metasurfaces can realize asymmetric transmission of linearly polarized lights. [21] By vertically integrating different metasurfaces on one substrate, optical systems with different functions can be miniaturization and integration. Recently, the few-layer metasurfaces have also been extended in the acoustic fields to realize some novel applications, such Metamaterials are 3D artificial structures proposed to surpass conventional natural materials and realize novel functions beyond traditional optical elements. Nevertheless, they are usually bulky and difficult to be fabricated. As 2D equivalents of metamaterials, metasurfaces have been proposed to overcome the drawbacks of metamaterials and fully control the polarizati...

show abstract

“…Similarly, polarization-switchable multi-functional metasurface for focusing and SP excitation are also designed by Ling et.al. [34]. All these works realize the independent SSP/SP excitation and beam steering under orthogonal linear polarization electromagnetic wave (EMW) illumination.…”

Section: Introductionmentioning

confidence: 99%

High-efficiency terahertz spin-decoupled meta-coupler for spoof surface plasmon excitation and beam steering

et al. 2019

View full text Add to dashboard Cite

Spoof surface plasmon (SSP) meta-couplers that efficiently integrate other diversified functionalities into a single ultrathin device are highly desirable in the modern microwave and terahertz fields. However, the diversified functionalities, to the best of our knowledge, have not been applied to circular polarization meta-couplers because of the spin coupling between the orthogonal incident waves. In this paper, we propose and numerically demonstrate a terahertz spin-decoupled bifunctional meta-coupler for SSP excitation and beam steering. The designed meta-coupler is composed of a coupling metasurface and a propagating metasurface. The former aims at realizing anomalous reflection or converting the incident waves into SSP under the illumination of the left or right circular polarization waves, respectively, and the latter are used to guide out the excited SSP. The respective converting efficiency can reach 82% and 70% at 0.3THz for the right and left circular polarization incident waves. Besides, by appropriately adjusting the reflection phase distribution, many other diversified functionalities can also be integrated into the meta-coupler. Our study may open up new routes for polarization-related SSP couplers, detectors, and other practical terahertz devices.

show abstract

Polarization-switchable and wavelength-controllable multi-functional metasurface for focusing and surface-plasmon-polariton wave excitation

Cited by 34 publications

References 39 publications

High Performance Metasurface Antennas

High Performance Metasurface Antennas

Empowered Layer Effects and Prominent Properties in Few‐Layer Metasurfaces

High-efficiency terahertz spin-decoupled meta-coupler for spoof surface plasmon excitation and beam steering

Contact Info

Product

Resources

About