Coherent high-power terahertz vortex generation with tunable orbital angular momentum based on transverse phase mask shaping
Year: 2024
Type: article
Abstract: Terahertz (THz) radiation has become a significant tool in cutting-edge research due to its superior properties. THz vortices with tunable orbital angular momentum (OAM) are particularly attractive to the scientific community due to their well-defined discrete azimuthal phase around the propagation axis. However, the generation of high-power THz radiation with OAM remains a challenge for most existing technologies. In this paper, a new method for generating coherent high-power THz vortices with tunable OAM and frequency is proposed by combining frequency beating and transverse phase mask shaping techniques. Theoretical analyses and numerical simulations indicate that this method can generate coherent THz vortices with peak powers in the tens of megawatts and tunable topological charge numbers.
Authors: Yin Kang, Zhikai Zhou, Weijie Fan, Yuxin Cheng, Kaiqing Zhang, Chao Feng, Zhentang Zhao
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $3,165
Award: G3952566243
OpenAlex ID: W4403628351