A Photonic crystal fiber with large effective refractive index separation and low dispersion Geng, Zhihao ; Wang, Ning ; Li, Keyao ; Kang, Hui ; Xu, Xun ; Liu, Xing ; Wang, Weicheng ; Jia, Hongzhi Abstract Publication: PLoS ONE Pub Date: May 2020 DOI: 10.1371/journal.pone.0232982 Bibcode: 2020PLoSO..1532982G