Nonlinear optical properties of 75TeO(2)-20Nb(2)O(5)-5ZnO glasses doped with CeO2

作者：Zhang SA; Sun ZR^*; Wang YF; Zeng HP; Wang ZG; Lin J; Huang WH; Xu ZZ; Li RX

来源：Chinese Physics, 2004, 13(8): 1287-1290.

• tellurite glasses
• CeO2
• degenerate four-wave mixing (DFWM)
• local-field corrections
• many-body Coulomb interaction

Nonlinear optical properties of 75TeO(2)-20Nb(2)O(5)-5ZnO glasses doped with CeO2 have been investigated with a self-diffracted time-resolved degenerate four-wave mixing (DFWM) technique at different excitation intensities and lattice temperatures. The DFWM signal exhibits three peaks at higher excitation intensities, where a main peak appears at zero delay time and two rather weak side peaks are located symmetrically at the negative and positive time delay. Due to destructive interferences between the fifth- and third-order polarizations, the line-shape of the main peak around the zero time delay evolves from single peak into a double-peak structure with increasing excitation intensity. Two side peaks emerge at the positive and negative time delay and gradually intensify with increasing excitation intensity or lattice temperature, and their positions are independent of the pulse duration, temperature and excitation intensity, which are attributed to the many-body Coulomb interaction.

• 出版日期2004-8
• 单位同济大学; 华东师范大学