Influence of dispersion distribution on the propagation and compression of self-similar optical beam Qiaofen Zhang, Huaizhong Li, Liming Wu and Jian Gao Eur. Phys. J. D, 73 2 (2019) 26 Published online: 05 February 2019 DOI: 10.1140/epjd/e2018-90367-4