Recent advances in generation of terahertz vortex beams and their applications

H Wang, Q Song, Y Cai, Q Lin, X Lu… - Chinese …, 2020‏ - iopscience.iop.org
Last decade has witnessed a rapid development of the generation of terahertz (THz) vortex
beams as well as their wide applications, mainly due to their unique combination …

Generation of terahertz radiation with fractional or integer OAMs from a fractional-order vortex two-color field

H Wang, S Xu, YY Chen, B Shen - New Journal of Physics, 2022‏ - iopscience.iop.org
This paper investigates the generation of the ultra-broadwidth (0.1–30 THz) terahertz (THz)
radiation carrying fractional/integer orbital angular momentums (OAMs) via the interaction of …

Few-cycle vortex beam generated from self-compression of midinfrared femtosecond vortices in thin plates

L Xu, D Li, J Chang, T ** the few-cycle vortex pump laser
H Wang, Q Song, Y Cai, X Lu, Q Lin, X Zeng… - Optics …, 2022‏ - opg.optica.org
We propose a scheme to manipulate the local orbital angular momentum (OAM) of the ultra-
broadband (0.1–30 THz) terahertz (THz) waves from the laser-induced short air filament via …

Spatiotemporal instabilities of terahertz OAM beams from air plasma via chir** a few-cycle vortex pump field

H Wang, S Xu, YY Chen, B Shen - Journal of Optics, 2022‏ - Springer
We studied the spatiotemporal instability during the evolution of ultra-broadband (0.1–30
THz) terahertz (THz) orbital angular momentum (OAM) radiation generated from an air …