Design and Validation of an All-Dielectric Metamaterial Medium for Collimating Orbital-Angular-Momentum Vortex Waves at Microwave Frequencies

Jianjia Yi, Mingtao Guo, Rui Feng, Badreddine Ratni, Lina Zhu, Douglas Henry Werner, Shah Nawaz Burokur

Research output: Contribution to journalArticle

Abstract

In wireless communications, electromagnetic (EM) waves carrying orbital angular momentum (OAM) can obviously improve data transmission efficiency due to their particular characteristic of multiple orthogonal modes. However, the divergent peculiarity of vortex waves limits seriously the propagation distance of communication. In this paper, a medium performing as a collimating lens for vortex waves is designed with a transformation optics concept and manufactured by additive printing technology. The design concept is presented and the lens is both numerically simulated and experimentally measured at microwave frequencies. The measured near-field amplitude distribution indicates that the divergence angle and the diameter of the doughnut-shaped vortex wave passing through the collimating lens are greatly reduced over a broad frequency range. The far-field antenna gain patterns show that the energy density of the vortex wave is significantly improved, while the phase profile and mode purity show that the topology charge of the vortex wave remains unchanged after passing through the collimating lens. The proposed all-dielectric collimating lens allows us to increase the realized gain of vortex waves and may extend the propagation distance, laying the foundation for future vortex wave communications.

Original languageEnglish (US)
Article number034060
JournalPhysical Review Applied
Volume12
Issue number3
DOIs
StatePublished - Sep 30 2019

Fingerprint

microwave frequencies
angular momentum
vortices
orbitals
lenses
communication
antenna gain
transmission efficiency
propagation
wireless communication
data transmission
printing
far fields
near fields
divergence
electromagnetic radiation
purity
topology
flux density
frequency ranges

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Yi, Jianjia ; Guo, Mingtao ; Feng, Rui ; Ratni, Badreddine ; Zhu, Lina ; Werner, Douglas Henry ; Burokur, Shah Nawaz. / Design and Validation of an All-Dielectric Metamaterial Medium for Collimating Orbital-Angular-Momentum Vortex Waves at Microwave Frequencies. In: Physical Review Applied. 2019 ; Vol. 12, No. 3.
@article{764373ae2cca4f9c9580beb69abeea7f,
title = "Design and Validation of an All-Dielectric Metamaterial Medium for Collimating Orbital-Angular-Momentum Vortex Waves at Microwave Frequencies",
abstract = "In wireless communications, electromagnetic (EM) waves carrying orbital angular momentum (OAM) can obviously improve data transmission efficiency due to their particular characteristic of multiple orthogonal modes. However, the divergent peculiarity of vortex waves limits seriously the propagation distance of communication. In this paper, a medium performing as a collimating lens for vortex waves is designed with a transformation optics concept and manufactured by additive printing technology. The design concept is presented and the lens is both numerically simulated and experimentally measured at microwave frequencies. The measured near-field amplitude distribution indicates that the divergence angle and the diameter of the doughnut-shaped vortex wave passing through the collimating lens are greatly reduced over a broad frequency range. The far-field antenna gain patterns show that the energy density of the vortex wave is significantly improved, while the phase profile and mode purity show that the topology charge of the vortex wave remains unchanged after passing through the collimating lens. The proposed all-dielectric collimating lens allows us to increase the realized gain of vortex waves and may extend the propagation distance, laying the foundation for future vortex wave communications.",
author = "Jianjia Yi and Mingtao Guo and Rui Feng and Badreddine Ratni and Lina Zhu and Werner, {Douglas Henry} and Burokur, {Shah Nawaz}",
year = "2019",
month = "9",
day = "30",
doi = "10.1103/PhysRevApplied.12.034060",
language = "English (US)",
volume = "12",
journal = "Physical Review Applied",
issn = "2331-7019",
publisher = "American Physical Society",
number = "3",

}

Design and Validation of an All-Dielectric Metamaterial Medium for Collimating Orbital-Angular-Momentum Vortex Waves at Microwave Frequencies. / Yi, Jianjia; Guo, Mingtao; Feng, Rui; Ratni, Badreddine; Zhu, Lina; Werner, Douglas Henry; Burokur, Shah Nawaz.

In: Physical Review Applied, Vol. 12, No. 3, 034060, 30.09.2019.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Design and Validation of an All-Dielectric Metamaterial Medium for Collimating Orbital-Angular-Momentum Vortex Waves at Microwave Frequencies

AU - Yi, Jianjia

AU - Guo, Mingtao

AU - Feng, Rui

AU - Ratni, Badreddine

AU - Zhu, Lina

AU - Werner, Douglas Henry

AU - Burokur, Shah Nawaz

PY - 2019/9/30

Y1 - 2019/9/30

N2 - In wireless communications, electromagnetic (EM) waves carrying orbital angular momentum (OAM) can obviously improve data transmission efficiency due to their particular characteristic of multiple orthogonal modes. However, the divergent peculiarity of vortex waves limits seriously the propagation distance of communication. In this paper, a medium performing as a collimating lens for vortex waves is designed with a transformation optics concept and manufactured by additive printing technology. The design concept is presented and the lens is both numerically simulated and experimentally measured at microwave frequencies. The measured near-field amplitude distribution indicates that the divergence angle and the diameter of the doughnut-shaped vortex wave passing through the collimating lens are greatly reduced over a broad frequency range. The far-field antenna gain patterns show that the energy density of the vortex wave is significantly improved, while the phase profile and mode purity show that the topology charge of the vortex wave remains unchanged after passing through the collimating lens. The proposed all-dielectric collimating lens allows us to increase the realized gain of vortex waves and may extend the propagation distance, laying the foundation for future vortex wave communications.

AB - In wireless communications, electromagnetic (EM) waves carrying orbital angular momentum (OAM) can obviously improve data transmission efficiency due to their particular characteristic of multiple orthogonal modes. However, the divergent peculiarity of vortex waves limits seriously the propagation distance of communication. In this paper, a medium performing as a collimating lens for vortex waves is designed with a transformation optics concept and manufactured by additive printing technology. The design concept is presented and the lens is both numerically simulated and experimentally measured at microwave frequencies. The measured near-field amplitude distribution indicates that the divergence angle and the diameter of the doughnut-shaped vortex wave passing through the collimating lens are greatly reduced over a broad frequency range. The far-field antenna gain patterns show that the energy density of the vortex wave is significantly improved, while the phase profile and mode purity show that the topology charge of the vortex wave remains unchanged after passing through the collimating lens. The proposed all-dielectric collimating lens allows us to increase the realized gain of vortex waves and may extend the propagation distance, laying the foundation for future vortex wave communications.

UR - http://www.scopus.com/inward/record.url?scp=85072797093&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85072797093&partnerID=8YFLogxK

U2 - 10.1103/PhysRevApplied.12.034060

DO - 10.1103/PhysRevApplied.12.034060

M3 - Article

AN - SCOPUS:85072797093

VL - 12

JO - Physical Review Applied

JF - Physical Review Applied

SN - 2331-7019

IS - 3

M1 - 034060

ER -