,Multiple trapping using a focused hybrid vector beam

• 作 者: Li Zhang Xiaodong Qiu Lingwei Zeng Lixiang Chen
• 机 构: School of Physics and Optoelectronic Engineering,Foshan University,Foshan 528000,China“,”Department
• 出 处: 中国物理B（英文版）
• 发表日期: 2019年9期
• 关键词: multiple trapping focused hybrid vector beam nanoparticle manipulation

We propose a simple and efficient method that uses a single focused hybrid vector beam to confine metallic Rayleigh particles at multiple positions.We study the force mechanisms of multiple trapping by analyzing the gradient and scattering forces.It is observed that the wavelength and topological charges of the hybrid vector beam regulate the trapping positions and number of optical trap sites.The proposed method can be implemented easily in three-dimensional space,and it facilitates both trapping and organization of particles.Thus,it can provide an effective and controllable means for nanoparticle manipulation.