Ultrathin Complementary Metasurface for Orbital Angular Momentum Generation at Microwave Frequencies

  title={Ultrathin Complementary Metasurface for Orbital Angular Momentum Generation at Microwave Frequencies},
  author={Menglin L. N. Chen and Li Jun Jiang and Wei E. I. Sha},
  journal={IEEE Transactions on Antennas and Propagation},
Electromagnetic (EM) waves with helical wave front carry orbital angular momentum (OAM), which is associated with the azimuthal phase of the complex electric field. OAM is a new degree of freedom in EM waves and is promising for channel multiplexing in the communication system. Although the OAM-carrying EM wave attracts more and more attention, the method of OAM generation at microwave frequencies still faces challenges, such as efficiency and simulation time. In this communication, by using… 

Figures from this paper

Detection of Orbital Angular Momentum With Metasurface at Microwave Band

An orbital angular momentum detection approach at microwave band is proposed, and a transmittance function is exploited to model a transmissive metasurface designed to convert an OAM wave to multiple waves, only one of which is Gaussian.

Photon Spin Hall Effect-Based Ultra-Thin Transmissive Metasurface for Efficient Generation of OAM Waves

Metasurfaces deployed for generating electromagnetic waves that carry orbital angular momentum (OAM) in the transmission mode are generally inefficient in operation. In this paper, we present a

Generation of a microwave beam with both orbital and spin angular momenta using a transparent metasurface

In this paper, transparent metasurfaces generating microwave beams with both orbital angular momentum (OAM) and spin angular momentum (SAM) are proposed. A multilayered metasurface unit cell was

Generating Dual-Mode Dual-Polarization OAM Based on Transmissive Metasurface

A transmissive metasurface for generating dual-mode and dual-polarization OAM has been designed, manufactured and experimentally validated and demonstrates a high performance of transmission and complete phase control.

Orbital Angular Momentum Generation by a Point Defect in Photonic Crystals

As an attractive degree of freedom in electromagnetic (EM) waves, the orbital angular momentum (OAM) enables infinite communication channels for both classical and quantum communications. The

Orbital angular momentum generation method based on transformation electromagnetics.

This work proposes an innovative OAM generation method based on transformation optics (TO), which provides an effective way to realize a conversion from plane waves to vortex waves, which can greatly facilitate the potential implementation of OAM waves in microwave wireless communication systems.

Complementary transmissive ultra-thin meta-deflectors for broadband polarization-independent refractions in the microwave region

Polarization manipulation is a significant issue for artificial modulation of the electromagnetic (EM) wave, but general mechanisms all suffer the restriction of inherent symmetric properties between

A Transmission Metasurface for Generating High-efficiency Broadband Millimeter Wave OAM Beams

This paper presents a transmission type broadband millimeter wave orbital angular momentum (OAM) generator. A three-layer metallic metasurface structure is proposed to implement the broadband OAM

Generation and Focusing of Orbital Angular Momentum Based on Polarized Reflectarray at Microwave Frequency

A novel polarized reflectarray is designed, fabricated, and experimentally characterized to show its flexibility and efficiency to control wave generation and focusing of orbital angular momentum

Dual-band vortex beam generation with different OAM modes using single-layer metasurface.

Simulated and experimental results demonstrate good performance of the proposed single-layer metasurface at the above two frequency bands.



Generation of Electromagnetic Waves with Arbitrary Orbital Angular Momentum Modes

This proposed planar-SPP uses the concept of transmit array antenna having a perforated substrate to control the outputting phase for generating beams carrying OAM with arbitrary modes for radio communication.

Artificial Perfect Electric Conductor-Perfect Magnetic Conductor Anisotropic Metasurface for Generating Orbital Angular Momentum of Microwave with Nearly Perfect Conversion Efficiency

Orbital angular momentum (OAM) is a promising degree of freedom for fundamental studies in electromagnetics and quantum mechanics. The unlimited state space of OAM shows a great potential to enhance

Optical spin-to-orbital angular momentum conversion in ultra-thin metasurfaces with arbitrary topological charges

Orbital angular momentum associated with the helical phase-front of optical beams provides an unbounded “space” for both classical and quantum communications. Among the different approaches to

Generating optical orbital angular momentum at visible wavelengths using a plasmonic metasurface

Light beams with a helical phase-front possess orbital angular momentum along their direction of propagation in addition to the spin angular momentum that describes their polarisation. Until

Circular Polarized Patch Antenna Generating Orbital Angular Momentum

The recent extension of the orbital angular momentum (OAM) concept from optical to microwave frequencies has led some researchers to explore how well established antenna techniques can be used to

On-chip discrimination of orbital angular momentum of light with plasmonic nanoslits.

A semi-ring plasmonic nanoslit to directly and spatially sort various OAM modes of light into ∼120 nm-spaced mode intervals on the metallic surface shows a viable solution to discriminate the OAM of light at the nano-scale and might lead to broad benefits across the fields of optical communications, plAsmonic physics and singular optics.

Transmission Characteristics of a Twisted Radio Wave Based on Circular Traveling-Wave Antenna

A traveling-wave circular loop antenna with its phase distribution along the circle of lφ is demonstrated to generate the twisted radio wave. Theoretical formulations of its radiation fields are

Twisted Focusing of Optical Vortices with Broadband Flat Spiral Zone Plates

Recent developments have shown that light's orbital angular momentum (OAM) can be harnessed for a diversity of emerging applications and generated by miniaturized OAM generators. Nanostructured flat

An efficient approach to generate microwave vector‐vortex fields based on metasurface

This study presents a simple but efficient approach to generate microwave vector‐vortex beams based on the metasurface composed of quasi‐periodic aperture‐coupled patch elements. We demonstrate that

Optical communications using orbital angular momentum beams

Orbital angular momentum (OAM), which describes the “phase twist” (helical phase pattern) of light beams, has recently gained interest due to its potential applications in many diverse areas.