Tuning of optical force on Rayleigh particles by charges
Numerous techniques exist for the modulation of optical force. Here, we introduce a novel method for tuning the optical force exerted on Rayleigh particles by surface charges. The scattering and internal electromagnetic fields of a particle are profoundly affected by its charges, leading to a significant enhancement of the optical force in specific regions. It is demonstrated that the charge-induced absorption enhancement arises from electric dipole resonance. This finding offers a new approach for the modulation of optical force and the study of optical manipulation via charge modulation.
Authors
- Weiqiang Ding (ORCID: https://orcid.org/0000-0002-8225-2951)
- Bojian Shi (ORCID: https://orcid.org/0009-0007-4872-3821)
- Yongyin Cao (ORCID: https://orcid.org/0000-0002-7377-1549)
- Tongtong Zhu (ORCID: https://orcid.org/0000-0003-0295-0598)
- Rui Feng (ORCID: https://orcid.org/0000-0001-8680-5851)
- Qi Jia (ORCID: https://orcid.org/0000-0001-8537-9328)
- Wenya Gao (ORCID: https://orcid.org/0000-0002-7324-8723)
- Xiaoxin Li (ORCID: https://orcid.org/0000-0001-5856-1634)
- Yanxia Zhang (ORCID: https://orcid.org/0000-0002-6610-5265)
- Fangkui Sun
- Yanyu Gao
Institutions
- Harbin Institute of Technology (CN)
- Dalian University of Technology (CN)
- Shanxi University of Traditional Chinese Medicine (CN)
Publication Details
- Journal
- Optics Letters
- Published
- 2025-06-18
- DOI
- https://doi.org/10.1364/ol.565393
- Primary Topic
- Orbital Angular Momentum in Optics
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Natural Science Foundation of China
- Fundamental Research Funds for the Central Universities
- Science Fund for Distinguished Young Scholars of Heilongjiang Province