Tunable OAM interaction between phase and intensity singularities

Shunyu Liu, Xiaoying Tang, Nana Liu, Huanpeng Liang, Peiyu Zhang, Lu Tian, Yu-Xuan Ren, Peilong Hong and Yi Liang

Chaos, Solitons & Fractals, 2025, vol. 199, issue P1

Abstract: Unlike traditional vortex beams, as a result of the OAM interaction between phase and intensity singularities, a kind of special beams named cyclonic catastrophe vortex beams (CCVBs), not only can exhibit spiral wavefronts and orbital angular momentum (OAM), but also can generate a central bright spot in the focal plane during their autofocusing propagation, despite carrying a vortex phase. These beams can rotate during propagation even without topological charge. Topological charge of the vortex phase significantly influences the propagation characteristics of CCVBs, enabling control over the size and intensity of the central spot by adjusting the OAM to fine-tune the bright solid spot’s properties. Moreover, the central solid spot allows CCVBs to capture polystyrene particles while simultaneously using their side lobes to rotate additional particles around the center. This functionality surpasses that of traditional vortex beams, offering greater flexibility and performance in optical manipulation. Our findings provide deeper insights into the interaction between intensity and phase singularities, opening new avenues for advanced optical manipulation and imaging applications.

Keywords: Vortex beams; Structured light; Phase singularity; OAM; Optical manipulation (search for similar items in EconPapers)
Date: 2025
References: Add references at CitEc
Citations:

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0960077925006034
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:chsofr:v:199:y:2025:i:p1:s0960077925006034

DOI: 10.1016/j.chaos.2025.116590

Access Statistics for this article

Chaos, Solitons & Fractals is currently edited by Stefano Boccaletti and Stelios Bekiros

More articles in Chaos, Solitons & Fractals from Elsevier
Bibliographic data for series maintained by Thayer, Thomas R. ().