| Nonlinear optical properties of Er_2O_3-doped 75Nb_2O_5-20TeO_2-5ZnO glasses |
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| 作者姓名： | 王宇飞 孙真荣 张诗按 王祖庚 林健 黄文旵 徐至展 李儒新 |
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| 作者单位： | Key Laboratory of Optical and Magnetic Resonance Spectroscopy，and Department of Physics，East China Normal University，Shanghai 200062，Key Laboratory of Optical and Magnetic Resonance Spectroscopy，and Department of Physics，East China Normal University，Shanghai 200062，Key Laboratory of Optical and Magnetic Resonance Spectroscopy，and Department of Physics，East China Normal University，Shanghai 200062，Key Laboratory of Optical and Magnetic Resonance Spectroscopy，and Department of Physics，East China Normal University，Shanghai 200062，School of Material Science and Engineering，Tongji University，Shanghai 200092，School of Material Science and Engineering，Tongji University，Shanghai 200092，Shanghai Institute of Optics and Fine Mechanics，Chinese Academy of Sciences，Shanghai 201800，Shanghai Institute of Optics and Fine Mechanics，Chinese Academy of Sciences，Shanghai 201800 |
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| 基金项目： | This work was suPPorted by Shanghai Priority Academic DisciPline，the National Natural Science Foundation of China(No.10234030 and 10074015)，the National Key Project for Basic Research(No.1999075204)，the Project Sponsored by Shangliai Science and Tech |
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| 摘 要： | We have performed time-resolved degenerate four-wave mixing (DFWM) experiments in 75Nb2O5-20TeO2-5ZnO glasses doped by Er2O3 at different excitation intensities and lattice temperatures. DFWM signal exhibits three peaks at high excitation intensities, where a main peak appears at zero time delay and two rather weak side peaks locate symmetrically at the negative and positive time delay, respectively. The main peak is attributed to local-field effect and two side peaks are attributed to Coulomb interaction (CI).
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