Gao Yan-Qi, Zhao Xiao-Hui, Jia Guo, Li Fu-Jian, Cui Yong, Rao Da-Xing, Ji Lai-Lin, Liu Dong, Feng Wei, Huang Xiu-Guang, Ma Wei-Xin, Sui Zhan. Low-coherece laser based lens array beam smoothing techiqueJ. Acta Physica Sinica, 2019, 68(7): 075201. DOI: 10.7498/aps.68.20182138