Chinese Optics Letters, 2010, 8 (1): 70, Published Online: Mar. 1, 2010
Femtosecond measurement of third-order optical nonlinearities in Bi2O3-B2O3-BaO glasses 
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三阶非线性 飞秒 Z扫描 铋酸盐玻璃 160.2750 Glass and other amorphous materials 160.4330 Nonlinear optical materials 160.4760 Optical properties
Abstract
We present the measurement of the third-order nonlinearity of Bi<sub>2</sub>O<sub>3</sub>-B<sub>2</sub>O<sub>3</sub>-BaO glasses using the single Z-scan method with femtosecond laser pulses at 750-850 nm. Both third-order nonlinear refraction \gamma and two photon absorption coefficient \beta are investigated. The \gamma shows an increasing tendency with increasing BaO content, and the largest value is estimated to be 7.2×10<sup>-14</sup> cm<sup>2</sup>/W, which is as large as those of chalcogenide glasses. The dependence of \beta on the normalized photon energy is studied.
Tiefeng Xu, Feifei Chen, Shixun Dai, Qiuhua Nie, Xiang Shen, Xunsi Wang. Femtosecond measurement of third-order optical nonlinearities in Bi2O3-B2O3-BaO glasses[J]. Chinese Optics Letters, 2010, 8(1): 70.
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