Work

Generation of terahertz generalized perfect vortex beams in various spatial modes

Year: 2025

Type: article

Abstract: A flexible approach for terahertz (THz) generalized perfect vortex beams (GPVBs) is proposed and experimentally showcased in various spatial modes. By the predefined curved trajectories and topological charges, we construct the amplitude and phase profiles of THz GPVBs to induce corresponding pure phase holograms computed by a modified dual-constraint Gerchberg-Saxton algorithm. In experiments, we fabricate the phase hologram plates to realize the THz GPVBs in single, multiplexed, coaxial, and arrayed curve modes, and the result indicates that the geometrical characteristics and carried topological charges of the THz GPVBs can be flexibly manipulated and customized. These THz GPVBs exhibit significant potential for encoding information in high-capacity THz mode-division multiplexing communications.

Source: Optics Express

DOI: 10.1364/oe.572418

Authors: Yongqiang Yang, Menghao Li, Liting Niu, Wenbing Zhang, Chengyao Peng, Bin Liang, Zongqiang Sheng, Hongwei Wu

Institutions: Anhui University of Science and Technology, Guangdong University of Petrochemical Technology, Institute of Energy, Hefei Comprehensive National Science Center, Huazhong University of Science and Technology

Language: English

Topic: Orbital Angular Momentum in Optics

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,270

OpenAlex ID: W4414561779

FWCI: 0.736

Cites: 34

Cited by: 2

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