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Tornado waves
DOI:10.1364/OL.45.000280.png)
摘要
En 中文
We show that light spiraling like a tornado can be generated by superimposing abruptly auto-focusing ring-Airy beams that carry orbital angular momentum of opposite handedness. With different parabolic propagation trajectories, the superimposing ring-Airy beams are tailored to abruptly auto-focus at overlapping focal regions. This results in a complex wave with intense lobes that twist and shrink in an accelerating fashion along propagation. By achieving angular acceleration values that exceed 295 rad/mm(2), these tornado waves can find numerous applications in laser trapping, direct laser writing, and high-harmonic generation. (C) 2020 Optical Society of America
Keyword:
ORBITAL ANGULAR-MOMENTUM
SUPERPOSITIONS
BEAMS
期刊
IF:
3.3
论文数:
4.0W
被引数:
7.6W

