posted on 2024-10-31, 19:10authored byXiaorui Zheng, Baohua Jia, Xi Chen, Min GuMin Gu
Graphene oxide films with controlled thicknesses were developed using a self-assembly method. The film exhibited both a giant and switchable nonlinear absorption coefficient of 40000 cm/GW and a nonlinear refractive index of 8 cm2/GW.