Glass formation and third-order optical nonlinear characteristics of bismuthate glasses within Bi2O3-GeO2-TiO2 pseudo-ternary system

作者：Chen Feifei; Song Baoan; Lin Changgui; Dai Shixun^*; Cheng Junwen; Heo Jong

来源：Materials Chemistry and Physics, 2012, 135(1): 73-79.

DOI：10.1016/j.matchemphys.2012.04.021

• Optical material
• Heavy-metal oxides
• Infrared and Raman spectroscopy
• Nonlinear optics

Glass-forming region of Bi2O3-GeO2-TiO2 (BGT) pseudo-ternary system was determined by using melt-quench method. A series of high transparent glass samples were selected and their structural characteristics were investigated by FT-IR and Raman spectra. By employing Z-scan and optical Kerr shutter techniques with femtosecond laser pulses as excitation source, third-order optical nonlinearities (TON) of the BGT glasses as well as the TON response time were investigated at wavelength of 800 nm. The ultrafast nonlinear response and high figure of merit suggest great potentials of BGT glasses in applications of all-optical switching or related optical devices.

• 出版日期2012-7-16
• 单位宁波大学