Generation of a Focused THz Vortex Beam from a Spintronic THz Emitter with a Helical Fresnel Zone Plate
Similar to optical vortex beams, terahertz (THz) vortex beams (TVBs) also carry orbital angular momentum (OAM). However, little research has been reported on the generation of TVBs. In this paper, based on the detour phase technique, we design a series of spintronic terahertz emitters with a helical...
Main Authors: | Xiaoqiang Zhang, Yong Xu, Bin Hong, Fan Zhang, Anting Wang, Weisheng Zhao |
---|---|
Format: | Article |
Language: | English |
Published: |
MDPI AG
2023-07-01
|
Series: | Nanomaterials |
Subjects: | |
Online Access: | https://www.mdpi.com/2079-4991/13/14/2037 |
Similar Items
-
Controlled Spintronic Emitter of THz Radiation on an Atomically Thin WS<sub>2</sub>/Silicon Substrate
by: Arseniy Buryakov, et al.
Published: (2022-10-01) -
The Role of Ferromagnetic Layer Thickness and Substrate Material in Spintronic Emitters
by: Arseniy Buryakov, et al.
Published: (2023-05-01) -
THz Systems Exploiting Photonics and Communications Technologies
by: Jan C. Balzer, et al.
Published: (2023-01-01) -
Characteristics of Bow-Tie Antenna Structures for Semi-Insulating GaAs and InP Photoconductive Terahertz Emitters
by: Salman Alfihed, et al.
Published: (2021-04-01) -
Directional Antennas for Sub-THz and THz MIMO Systems: Bridging the Gap Between Theory and Implementation
by: Duschia M. Bodet, et al.
Published: (2023-01-01)