| 超低温下掺Er3+玻璃的相干拍频调制效应研究 |
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| 引用本文： | 李玉琼,张扬,沈建琪.超低温下掺Er3+玻璃的相干拍频调制效应研究[J].光学学报,2011(11):237-240. |
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| 作者姓名： | 李玉琼 张扬 沈建琪 |
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| 作者单位： | 上海理工大学理学院; |
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| 摘 要： | 采用非相干光时延四波混频(TDFWM-IL)实验装置,在7K温度下,利用波长为800 nm的飞秒脉冲激光,观测到掺Er3+玻璃的光子回波效应,发现信号随延时变化的拍频调制结构.根据TDFWM-IL多能级理论,运用其非均匀加宽占主导时的公式拟合实验结果,从最佳拟合获得的退相时间T2=300 fs,这与由相干控制实验测得的...
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| 关 键 词： | 非线性光学 光子回波 相干拍频调制 非相干光时延四波混频 超低温 掺Er3+碲酸盐玻璃 |
Study of Coherent-Beat Modulation in Er~(3+)-Doped Glass at Ultra-Low Temperature |
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| Li Yuqiong Zhang Yang Shen Jianqi.Study of Coherent-Beat Modulation in Er~(3+)-Doped Glass at Ultra-Low Temperature[J].Acta Optica Sinica,2011(11):237-240. |
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| Authors: | Li Yuqiong Zhang Yang Shen Jianqi |
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| Institution: | Li Yuqiong Zhang Yang Shen Jianqi(College of Science,University of Shanghai for Science and Technology,Shanghai 200093,China) |
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| Abstract: | The photon echo of the Er2O3-doped TeO2-Nb2O5-ZnO glass is observed on the time-delay four-wave mixing with incoherent light(TDFWM-IL) experimental setup,at the temperature 7K and with the femtosecond pulse laser of 800 nm wavelength.Moreover,the interference-beat modulation of signal intensity versus delay time is found in the experiment.According to the multi-level theory of TDFWM-IL,the experimental result is fitted with the theoretical formula when the inhomogeneous broadening is dominant.The dephasing ... |
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| Keywords: | nonlinear optics photon echo coherent beat-frequency modulation time-delay four-wave mixing with incoherent light ultra-low temperature Er3 -doped telluride |
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