期刊
PHYSICAL REVIEW A
卷 106, 期 1, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.106.013509
关键词
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资金
- National Natural Science Foundation of China [12174122, 11775083]
- Guangdong provincial Natural Science Foundation of China [2022A1515011482]
- Science and Technology Program of Guangzhou [2019050001]
- Extracurricular Scientific Program of School of Information and Optoelectronic Science and Engineering, South China Normal University [21GDKB02]
- Special Funds for the Cultivation of Guangdong College Students Scientific and Technological Innovation (Climbing Programa Special Funds) [pdjh2022a0129]
A type of circular Pearcey-like vortex beam is introduced, which combines the properties of self-acceleration and abruptly autofocusing in the off-axis position. The beam, with the interplay between spiral phase and modulated phase of arbitrary predesigned trajectories, presents a special shape suitable for manipulating and guiding particles along any trajectory.
A type of circular Pearcey-like vortex beam (CPLVB) is introduced numerically and experimentally, combin-ing the properties of self-acceleration and abruptly autofocusing in the off-axis position. The interplay between the spiral phase and the modulated phase of arbitrary predesigned trajectories assists the beam to present a special shape which is suitable for manipulating and guiding particles along arbitrary trajectories. The beam propagating along the hyperbolic, hyperbolic secant trajectories generates a twisting hollow guide channel, and a parabolic bottlelike structure is constructed when the beam accelerates along the parabolic trajectory. Furthermore, the generation of the CPLVB, stable trapping, and rotation motion of micron-sized particles and transport of light-absorbing particles in air are realized in the experiment. Our results may bring about possibilities for wave front control, optical guidance, and manipulation of particles.
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