Third-order optical nonlinear properties and low-frequency Raman Scattering spectra of novel MO-Nb₂O₅-TeO₂ glasses

Abstract

The objective of this study is to investigate the transformation of the glass structure caused by doping MO (M=Zn, Mg, Ca, Sr, Ba) to Nb₂O₅-TeO₂ glass and the relationship between glass structures and third-order nonlinear optical properties. The values of third-order nonlinear optical properties were measured by a Z-scan technique using a femtosecond pulse laser from a regenerative Ti:Sapphire laser system. In addition, third-order nonlinear optical properties and the intermediate range order in glass network of MO-Nb₂O₅-TeO₂ glasses were analyzed using low-frequency raman spectra.