@article{Lu2017, author = "Daquan Lu and Liejia Qian and Yongzhong Li and Hua Yang and Heyuan Zhu and Dianyuan Fan", title = "{Media 1: Phase velocity nonuniformity-resulted beam patterns in difference frequency generation}", year = "2017", month = "4", url = "https://opticapublishing.figshare.com/articles/media/Media_1_Phase_velocity_nonuniformity-resulted_beam_patterns_in_difference_frequency_generation/4937636", doi = "10.1364/OE.15.005050.m001" }