| 四波混频中光束延迟对信号强度的影响 |
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| 引用本文： | 王应宗,刘淑敏,许蓓蕾,陈发堂,李树华.四波混频中光束延迟对信号强度的影响[J].陕西师范大学学报,1997(2). |
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| 作者姓名： | 王应宗 刘淑敏 许蓓蕾 陈发堂 李树华 |
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| 作者单位： | 陕西师范大学物理学系 |
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| 摘 要： | 从密度矩阵出发，研究非简并四波混频中两泵浦光之间的时间延迟对信号强度的影响．发现在Ｎａ蒸汽中，两个双光子过程之间的干涉可形成稳定的拍频信号．实验结果与理论计算基本一致．这为研究物质驰豫过程及测量原子激发态能级结构，提供了理论和实验依据
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| 关 键 词： | 四波混频 双光子跃迁 多普勒增宽 |
Effect of time delay in FWM on intensity of output signal |
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| Wang Yingzong,Liu Shumin,Xu Beilei,Chen Fatang,Li Shuhua.Effect of time delay in FWM on intensity of output signal[J].Journal of Shaanxi Normal University: Nat Sci Ed,1997(2). |
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| Authors: | Wang Yingzong Liu Shumin Xu Beilei Chen Fatang Li Shuhua |
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| Abstract: | Based on the theory of density matrix, the nondegenerate fourwave mixing (NDFWM) signal intensity versus relative time delay between two pump beams is calculated. Experiments in Na vapour show a modulation of the four wave mixing signal intensity between the polarization interference of the two double photon processes. It can be used to study the relaxation and energy levels of the excited states. |
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| Keywords: | NDFWM double photon trasition |
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