Abstract

Spatiotemporal optical vortex (STOV) wavepacket carrying transverse photonic orbital angular momentum (OAM) has been extensively studied in the past few years. In this Letter, we propose and study a novel STOV wavepacket with multiple phase singularities embedded in different space–time domains using analytical and numerical approaches. By tuning different parameters used for designing the wavepacket, it is possible to engineer both the magnitude and orientation of the photonic OAM in space–time. The vectorially controllable OAM will pave new avenues and facilitate applications such as novel optical communication, studying complicated quantum systems, and spin-and-OAM interactions.

© 2023 Chinese Laser Press

Towards optical toroidal wavepackets through tight focusing of the cylindrical vector two dimensional spatiotemporal optical vortex

Jian Chen, Pengkun Zheng, and Qiwen Zhan
Opt. Express 30(26) 46666-46679 (2022)

Properties of the generation and propagation of spatiotemporal optical vortices

Shunlin Huang, Peng Wang, Xiong Shen, and Jun Liu
Opt. Express 29(17) 26995-27003 (2021)

Spatiotemporal coupling induced controllable orientation of photonic orbital angular momentum at subwavelength scale

Zhaorui Zhang, Si Gu, Bing Gu, Bingjue Li, and Guanghao Rui
Opt. Express 32(1) 526-536 (2024)

Second-harmonic generation of spatiotemporal optical vortices and conservation of orbital angular momentum

S. W. Hancock, S. Zahedpour, and H. M. Milchberg
Optica 8(5) 594-597 (2021)

Generation of terahertz spatiotemporal optical vortices with frequency-dependent orbital angular momentum

Shuo Wang, Ya Bai, Na Li, and Peng Liu
Opt. Express 31(10) 16267-16280 (2023)