Femtosecond measurement of third-order optical nonlinearities in Bi_2O_3-B_2O_3-BaO glasses  

作　　者：徐铁峰 陈飞飞 戴世勋 聂秋华 沈祥 王训四 

机构地区：[1]College of Information Science and Engineering,Ningbo University

出　　处：《Chinese Optics Letters》2010年第1期70-73,共4页中国光学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.60978058,60908032, and 60972064);the Natural Science Foundation of Zhejiang Province(No.Y1090996);the Scientific Research Foundation of Graduate School of Ningbo University, and the K.C.Wong Magna Fund in Ningbo University

摘　　要：We present the measurement of the third-order nonlinearity of Bi203-B^O3-BaO glasses using the single Z-scan method with femtosecond laser pulses at 750 - 850 nm. Both third-order nonlinear refraction γ and two photon absorption coefficient β are investigated. The γ shows an increasing tendency with increasing BaO content, and the largest value is estimated to be 7.2×10^-14 cm^2/W, which is as large as those of chalcogenide glasses. The dependence of 13 on the normalized photon energy is studied.We present the measurement of the third-order nonlinearity of Bi203-B^O3-BaO glasses using the single Z-scan method with femtosecond laser pulses at 750 - 850 nm. Both third-order nonlinear refraction γ and two photon absorption coefficient β are investigated. The γ shows an increasing tendency with increasing BaO content, and the largest value is estimated to be 7.2×10^-14 cm^2/W, which is as large as those of chalcogenide glasses. The dependence of 13 on the normalized photon energy is studied.

关 键 词：GLASS Glass lasers Nonlinear optics PHOTONS Pulsed laser applications 

分 类 号：TQ171.1[化学工程—玻璃工业]