Investigation on the laser trapping mechanism of light-absorbing particles in air Bo He, Xuemei Cheng, Yongjie Zhan, Qian Zhang, Haowei Chen, Zhaoyu Ren, Chen Niu, Jingjing Yao, Tengfei Jiao and Jintao Bai EPL, 126 6 (2019) 64002 Published online: 24 July 2019 DOI: 10.1209/0295-5075/126/64002