Most of the self-accelerating beams have monotonous single-channel bending structures, which greatly limit their applications in many fields such as microscopic imaging and particle manipulation. In this paper, the self-accelerating cusp beams with variable numbers of multichannel bending structures are generated to demonstrate the optical transportation and accumulation of micrometer polystyrene particles. The transportation velocity and optical force profiles of the microparticles moving along the bending channels of cusp beams are analyzed. Parallel particle transportation and particle accumulation manipulation from all the bending channels are further demonstrated. These results will inspire a lot of promising applications for self-accelerating beams especially in three-dimensional optical micromanipulation.


Mechanical and Aerospace Engineering

Research Center/Lab(s)

Intelligent Systems Center


The authors acknowledge support from NASA Innovative Advanced Concepts (NIAC) (Grant No. NNX16AL26G) and the Office of Naval Research (Grant No. N00014-16-1-2408).

Keywords and Phrases

Bending structures; Microscopic imaging; Optical micromanipulation; Particle accumulation; Particle manipulation; Particle transportation; Polystyrene particle; Single channels

International Standard Serial Number (ISSN)

2469-9926; 2469-9934

Document Type

Article - Journal

Document Version

Final Version

File Type





© 2019 The Author(s), All rights reserved.

Publication Date

01 Apr 2019