Third-order optical nonlinearity of Na2O–B2O3–SiO2 glass doped with lead nanoparticles prepared by sol–gel method

Chenglong Zhang, Weidong Xiang, Hongyan Luo, Haitao Liu, Xiaojuan Liang, Xin Ma, Lang Pei, Zhaoping Chen, Jinsong Li, Haihong Gao, Li Ma