Propagation-Invariant Spatiotemporal Vortex Beams

Stable vortex over long range

First experimental demonstration of spatiotemporal vortex beams that maintain their profiles and topological charges over extended distances.

Ye, Junyi · Che, Zhiyuan · Wang, Jiajun · Zhang, Yi · Bo, Wang · Liu, Wenzhe · Shi, Lei · Zi, Jian

Science Bulletin 2025