Z-scan applied to phosphate glasses doped with Er${}^{3+}$-Yb${}^{3+}$ and silver nanoparticles

C. Wiechers, M. A. Martinez-Gamez, M. A. Vallejo-Hernandez +4

We report on the use of Z-scan technique with a beam composed with two modes, to probe the nonlinear optical properties of phosphate glasses doped with Er${}^{3+}$-Yr${}^{3+}$ and silv…