Orbital angular momentum waves: Generation, detection, and emerging applications

R Chen, H Zhou, M Moretti, X Wang… - … Surveys & Tutorials, 2019 - ieeexplore.ieee.org
Orbital angular momentum (OAM) has aroused a widespread interest in many fields,
especially in telecommunications due to its potential for unleashing new capacity in the …

OAM beam generation in space and its applications: A review

Y Lian, X Qi, Y Wang, Z Bai, Y Wang, Z Lu - Optics and Lasers in …, 2022 - Elsevier
In recent years, vortex beams with orbital angular momentum (OAM) have attracted more
and more attention. The wavefront of the OAM beams is helical, the intensity at the center of …

Ultrawideband reflection-type metasurface for generating integer and fractional orbital angular momentum

LJ Yang, S Sun, EI Wei - IEEE Transactions on Antennas and …, 2019 - ieeexplore.ieee.org
Vortex beams carrying orbital angular momentum (OAM) are extensively studied owing to its
potential to expand channel capacity of microwave and optical communication. By utilizing …

[HTML][HTML] 雷达对地成像技术多向演化趋势与规律分析

杨建宇 - 雷达学报, 2019 - radars.ac.cn
该文从成像结果表征, 孔径流形, 信号通道, 系统形态, 观测方向, 处理方法, 实现机理,
目标识别等方面剖析了雷达对地成像技术的多向演化态势, 并试图从宏观的视角和大的时间尺度 …

Using a complex optical orbital-angular-momentum spectrum to measure object parameters

G Xie, H Song, Z Zhao, G Milione, Y Ren, C Liu… - Optics letters, 2017 - opg.optica.org
Light beams can be characterized by their complex spatial profiles in both intensity and
phase. Analogous to time signals, which can be decomposed into multiple orthogonal …

LD-pumped high-power CW Pr3+: YLF Laguerre-Gaussian lasers at 639 nm

X Lin, M Chen, Q Feng, S Ji, S Cui, Y Zhu, B Xiao… - Optics & Laser …, 2021 - Elsevier
Based on a lowly-doped (0.12 at.%) Pr3+: YLF crystal, high-power continuous-wave (CW)
lasers at 639 nm were obtained by laser-diode (LD) pumping. A maximum output power of …

Chiral metasurface enabled circularly polarized OAM-generating folded transmitarray antenna with high-gain low-profile and broadband characteristics

D Liao, X Ren, L Jing, M Li, H Chen… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
A broadband low-profile high-gain folded transmitarray antenna (FTA) is proposed to
generate orbital angular momentum (OAM) with circular polarization. A chiral metasurface is …

[HTML][HTML] Generation of polarization-multiplexed terahertz orbital angular momentum combs via all-silicon metasurfaces

MZ Chong, Y Zhou, ZK Zhang, J Zhao… - Light: Advanced …, 2024 - light-am.com
Electromagnetic waves carrying orbital angular momentum (OAM), namely OAM beams, are
important in various fields including optics, communications, and quantum information …

Microwave-sensing technology using orbital angular momentum: Overview of its advantages

K Liu, Y Cheng, X Li, Y Gao - IEEE Vehicular Technology …, 2019 - ieeexplore.ieee.org
Industry and academia have agreed that the vortex electromagnetic (EM) wave carrying
orbital angular momentum (OAM) provides a dynamic freedom that can enhance radar …

Implementation of vortex electromagnetic waves high-resolution synthetic aperture radar imaging

X Bu, Z Zhang, L Chen, X Liang… - IEEE Antennas and …, 2018 - ieeexplore.ieee.org
The vortex electromagnetic (EM) wave carrying orbital angular momentum (OAM) offers a
new degree of freedom for radar techniques, although to date its application to synthetic …