Pixelation-free multi-ring vector perfect vortex beams for rotation detection
Multi-ring perfect vortex beams enable the multi-parameter detection of rotating objects, providing distinct advantages in various applications.Generating fine rings is essential in improving the signal-to-noise ratio (SNR) for microscopic detection.However, the current method of directly modulating with spatial light modulators is hindered by pixelization.Here, we propose an approach based on the Bessel beam kinoform and cross-polarization superposition to generate high-quality beams with fine ring radii.Through simulations and experiments, we demonstrate its advantages in enhancing the SNR and measuring the velocity gradient.This approach provides a universal strategy for beam design and velocity gradient detection in fluidic environments.
Authors
- Xingyuan Lu (ORCID: https://orcid.org/0000-0001-9756-8767)
- Jianbo Gao (ORCID: https://orcid.org/0000-0003-2621-3701)
- Yangjian Cai (ORCID: https://orcid.org/0000-0003-3440-7709)
- Hao Zhang (ORCID: https://orcid.org/0000-0001-6514-9090)
- Chengliang Zhao (ORCID: https://orcid.org/0000-0003-3703-889X)
- Zhiquan Hu (ORCID: https://orcid.org/0009-0007-3303-7431)
- X. Cai
Institutions
- Henan University of Science and Technology (CN)
- Shandong Normal University (CN)
- Soochow University (CN)
Publication Details
- Journal
- Chinese Optics Letters
- Published
- 2025-01-01
- DOI
- https://doi.org/10.3788/col20523.100005
- Citations
- 1
- Primary Topic
- Orbital Angular Momentum in Optics
- Type
- article
- Field-Weighted Citation Impact
- 1.25
Funders
- National Natural Science Foundation of China
- Priority Academic Program Development of Jiangsu Higher Education Institutions
- National Key Research and Development Program of China