Influence of trapping power and scanning speed on the quality of ordered structures formed in Z-scan-based optical trappingQiao-Feng Dai, Hai-Ying Liu, Jin Liu, Li-Jun Wu, Qi Guo, Wei Hu, Xiang-Bo Yang, Song-Hao Liu, Sheng Lan, Achanta Venu Gopal and Vyacheslav A. TrofimovEPL, 85 1 (2009) 18004DOI: https://doi.org/10.1209/0295-5075/85/18004